diff --git a/.babelrc b/.babelrc
deleted file mode 100644
index 7a870ac..0000000
--- a/.babelrc
+++ /dev/null
@@ -1 +0,0 @@
-{ "presets": ["es2015"] }
\ No newline at end of file
diff --git a/.eslintrc b/.eslintrc
deleted file mode 100644
index 1d77f3c..0000000
--- a/.eslintrc
+++ /dev/null
@@ -1,15 +0,0 @@
-{
-	"extends": "kingsquare",
-	"env": {
-		"browser": true,
-		"node": true
-	},
-	"globals": {
-		"App": false,
-		"Ext": false,
-		"config": false
-	},
-  "rules": {
-    "prefer-rest-params": [0]
-  }
-}
diff --git a/README.md b/README.md
index 1731149..01934d9 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+[![wercker status](https://app.wercker.com/status/0d5d25d4c12cbdfc395f363a2684a6a4/s/master "wercker status")](https://app.wercker.com/project/byKey/0d5d25d4c12cbdfc395f363a2684a6a4)
+
 # communibase-template-data-factory
 
 Enrich Communibase-data in any way possible for easy use in dynamic templates.
@@ -28,13 +30,3 @@ __stxt__: a Javascript-object containing optional translations, e.g.:
  
 Extra (custom) serializers can be added to the factory using the `addSerializers`-method. See serializers in the
 `entityType`-folder for examples and implementations
-
-## Debugging?
-
-See runTest.js line 44, attach a debugger from the IDE to mocha
-
- ### PLEASE NOTE ###
-
- This library is compatible with Handlebars 2.0.0
-
- Later versions of Handlebars have a different AST and do not function properly!
diff --git a/package.json b/package.json
index d30df4d..cf6aaa5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "communibase-template-data-factory",
-  "version": "2.0.13",
+  "version": "3.0.0",
   "description": "Helper methods for working with Templates and the Communibase service.",
   "scripts": {
     "test": "mocha $NODE_DEBUG_OPTION test/tests/**/*.js",
@@ -20,25 +20,50 @@
   "dependencies": {
     "bluebird": "^3.5.1",
     "communibase-connector-js": "^0.5.16",
-    "handlebars": "^2.0.0",
+    "handlebars": ">=2.0.0 <= 4",
     "lodash": "^4.17.4",
     "moment": "^2.19.2"
   },
   "devDependencies": {
     "Communibase": "git+ssh://git@bitbucket.org/communibase/api.git",
     "babel-cli": "^6.26.0",
-    "babel-preset-es2015": "^6.24.1",
+    "babel-preset-env": "^1.7.0",
     "bson-stream": "0.0.8",
     "eslint": "^5.9.0",
     "eslint-config-kingsquare": "^5.0.5",
     "grunt": "^1.0.1",
     "grunt-shell": "^2.1.0",
+    "handlebars-v2": "npm:handlebars@2.0.0",
+    "handlebars-v3": "npm:handlebars@3.0.3",
+    "handlebars-v4": "npm:handlebars@4.0.12",
     "kingsquare-handlebars-helpers": "^1.1.8",
     "mocha": "^5.2.0",
     "mongodb": "^2.2.24",
     "prettier": "^1.15.2"
   },
+  "eslintConfig": {
+    "extends": "kingsquare",
+    "env": {
+      "browser": true,
+      "node": true
+    },
+    "globals": {
+      "App": false,
+      "Ext": false,
+      "config": false
+    },
+    "rules": {
+      "prefer-rest-params": [
+        0
+      ]
+    }
+  },
+  "babel": {
+    "presets": [
+      "env"
+    ]
+  },
   "engines": {
-    "node": ">=8.3.0"
+    "node": "^8.3.0"
   }
 }
diff --git a/src/inc/HandlebarsAST.js b/src/inc/HandlebarsAST.js
new file mode 100644
index 0000000..8518c37
--- /dev/null
+++ b/src/inc/HandlebarsAST.js
@@ -0,0 +1,255 @@
+const uniq = require("lodash/uniq");
+
+const debug = false;
+
+const isHelper = function(node) {
+  // In v2 we had helper hints in the AST (`node.isHelper`)..
+  if (typeof node.isHelper !== "undefined") {
+    return node.isHelper;
+  }
+  // in v4 this information is not available in the AST so we need to
+  // check this our self... To do this we use the following code taken from
+  // https://github.com/wycats/handlebars.js/blob/95d84badcae89aa72a6f1433b851304700320920/lib/handlebars/compiler/ast.js#L8
+  return (
+    node.type === "SubExpression" ||
+    ((node.type === "MustacheStatement" || node.type === "BlockStatement") &&
+      !!((node.params && node.params.length) || node.hash))
+  );
+};
+
+module.exports.getV2Paths = node => {
+  let result = [];
+
+  if (!node || !node.type) {
+    return result;
+  }
+
+  let blockKeys;
+  switch (node.type.toLowerCase()) {
+    // E.g. 'date' / 'debtor.debtorNumber'
+    case "id":
+      result.push(node.idName);
+      break;
+
+    case "program":
+      node.statements.forEach(statement => {
+        this.getV2Paths(statement).forEach(variable => {
+          result.push(variable);
+        });
+      });
+      break;
+
+    // E.g. #each / #if / #compare / '#invoiceItems' / '#ifIsCredit'
+    case "block":
+      blockKeys = this.getV2Paths(node.mustache);
+
+      if (
+        (!isHelper(node.mustache) || node.mustache.id.string === "each") &&
+        node.program
+      ) {
+        this.getV2Paths(node.program).forEach(subValue => {
+          result.push(`${blockKeys[0]}.#.${subValue}`);
+        });
+        break;
+      }
+
+      if (node.mustache.id.string === "filter") {
+        // look for used properties in equation
+        [
+          node.mustache.params[1],
+          node.mustache.params[node.mustache.params.length === 4 ? 3 : 2]
+        ].forEach(possiblePropertyNode => {
+          switch (possiblePropertyNode.type) {
+            case "STRING":
+              // e.g. ../session.personId
+              result.push(`${blockKeys[0]}.#.${possiblePropertyNode.string}`);
+              break;
+
+            case "ID":
+              // e.g. personId
+              result.push(possiblePropertyNode.string);
+              break;
+          }
+        });
+
+        this.getV2Paths(node.program).forEach(subValue => {
+          // indexes may change due to filtering: always request __all__ subValues
+          result.push(
+            subValue.replace(/^results\.(\d+|#)\./, `${blockKeys[0]}.#.`)
+          );
+        });
+        break;
+      }
+
+      result = blockKeys;
+
+      if (node.program) {
+        this.getV2Paths(node.program).forEach(variable => {
+          result.push(variable);
+        });
+      }
+      if (node.inverse) {
+        this.getV2Paths(node.inverse).forEach(variable => {
+          result.push(variable);
+        });
+      }
+      break;
+
+    // E.g. '{{#compare person.gender 'M'}}'
+    case "mustache":
+      if (!isHelper(node)) {
+        result.push(node.id.idName);
+        break;
+      }
+
+      node.params.forEach(param => {
+        this.getV2Paths(param).forEach(variable => {
+          result.push(variable);
+        });
+      });
+      break;
+  }
+
+  return result;
+};
+
+module.exports.getV4Paths = node => {
+  let result = [];
+  if (!node || !node.type) {
+    return result;
+  }
+  let blockKeys;
+  switch (node.type) {
+    case "Program":
+      node.body.forEach(item => {
+        this.getV4Paths(item).forEach(variable => {
+          result.push(variable);
+        });
+      });
+      break;
+    case "BlockStatement":
+      // const blockKeys = node.params.map(param => this.getV4Paths(param));
+      blockKeys = [];
+      node.params.forEach(param => {
+        this.getV4Paths(param).forEach(variable => {
+          blockKeys.push(variable);
+        });
+      });
+
+      if (
+        (!isHelper(node) || (node.path && node.path.original === "each")) &&
+        node.program
+      ) {
+        this.getV4Paths(node.program).forEach(subValue => {
+          result.push(`${blockKeys[0]}.#.${subValue}`);
+        });
+        break;
+      }
+
+      if (node.path && node.path.original === "filter") {
+        // look for used properties in equation
+        [node.params[1], node.params[node.params.length === 4 ? 3 : 2]].forEach(
+          possiblePropertyNode => {
+            switch (possiblePropertyNode.type) {
+              case "StringLiteral":
+                // e.g. ../session.personId
+                result.push(
+                  `${blockKeys[0]}.#.${possiblePropertyNode.original}`
+                );
+                break;
+
+              // @ TODO BooleanLiteral ?
+              // @ TODO the following
+              case "ID":
+                // e.g. personId
+                result.push(possiblePropertyNode.original);
+                break;
+            }
+          }
+        );
+
+        if (node.program) {
+          this.getV4Paths(node.program).forEach(subValue => {
+            // indexes may change due to filtering: always request __all__ subValues
+            result.push(
+              subValue.replace(/^results\.(\d+|#)\./, `${blockKeys[0]}.#.`)
+            );
+          });
+        }
+        break;
+      }
+
+      result = blockKeys;
+      // if (node.path) {
+      //   result = this.getV4Paths(node.path);
+      // }
+
+      if (node.program) {
+        this.getV4Paths(node.program).forEach(variable => {
+          result.push(variable);
+        });
+      }
+
+      if (node.inverse) {
+        this.getV4Paths(node.inverse).forEach(variable => {
+          result.push(variable);
+        });
+      }
+      break;
+
+    case "MustacheStatement":
+      if (!isHelper(node)) {
+        result.push(node.path.original);
+      }
+
+      if (node.params) {
+        node.params.forEach(param => {
+          this.getV4Paths(param).forEach(variable => {
+            result.push(variable);
+          });
+        });
+      }
+      break;
+    case "PathExpression":
+      result.push(node.original);
+      break;
+  }
+  return result;
+};
+
+/**
+ * Gets all requested paths based on the given template. When inserting:
+ * {{invoiceNumber}} - {{#invoiceItems}} {{totalEx}} {{/invoiceItems}}
+ * It should return:
+ * ["invoiceNumber", "invoiceItems.#.totalEx"]
+ *
+ * This supports Handlebars >=2.0.0 <=4
+ *
+ * @param {object} node
+ *
+ * @returns {Array} result - The requested paths
+ */
+module.exports.getTemplatePaths = node => {
+  if (debug) {
+    // eslint-disable-next-line no-console
+    console.log(`${JSON.stringify(node)}\n\n`);
+  }
+
+  let paths = [];
+
+  // v2
+  if (node.statements) {
+    paths = this.getV2Paths(node);
+  }
+
+  // v3 / v4
+  if (node.body) {
+    paths = this.getV4Paths(node);
+  }
+
+  if (debug) {
+    // eslint-disable-next-line no-console
+    console.log(uniq(paths));
+  }
+  return uniq(paths);
+};
diff --git a/src/index.js b/src/index.js
index dfdfff6..eb4f3b8 100755
--- a/src/index.js
+++ b/src/index.js
@@ -1,117 +1,6 @@
 /* eslint-disable global-require */
 const Promise = require("bluebird");
-const _ = require("lodash");
-
-let debug = false;
-
-/**
- * Gets all requested paths based on the given template. When inserting:
- * {{invoiceNumber}} - {{#invoiceItems}} {{totalEx}} {{/invoiceItems}}
- * It should return:
- * ["invoiceNumber", "invoiceItems.#.totalEx"]
- *
- * @param {object} node
- * @returns {Array} result - The requested paths
- */
-function _getPaths(node) {
-  let result = [];
-  if (debug) {
-    // eslint-disable-next-line no-console
-    console.log(`${JSON.stringify(node)}\n\n`);
-  }
-
-  if (!node || !node.type) {
-    return result;
-  }
-
-  let blockKeys;
-  switch (node.type.toLowerCase()) {
-    // E.g. 'date' / 'debtor.debtorNumber'
-    case "id":
-      result.push(node.idName);
-      break;
-
-    case "program":
-      node.statements.forEach(statement => {
-        _getPaths(statement).forEach(variable => {
-          result.push(variable);
-        });
-      });
-      break;
-
-    // E.g. #each / #if / #compare / '#invoiceItems' / '#ifIsCredit'
-    case "block":
-      blockKeys = _getPaths(node.mustache);
-
-      if (
-        (!node.mustache.isHelper || node.mustache.id.string === "each") &&
-        node.program
-      ) {
-        _getPaths(node.program).forEach(subValue => {
-          result.push(`${blockKeys[0]}.#.${subValue}`);
-        });
-        break;
-      }
-
-      if (node.mustache.id.string === "filter") {
-        // look for used properties in equation
-        [
-          node.mustache.params[1],
-          node.mustache.params[node.mustache.params.length === 4 ? 3 : 2]
-        ].forEach(possiblePropertyNode => {
-          switch (possiblePropertyNode.type) {
-            case "STRING":
-              // e.g. ../session.personId
-              result.push(`${blockKeys[0]}.#.${possiblePropertyNode.string}`);
-              break;
-
-            case "ID":
-              // e.g. personId
-              result.push(possiblePropertyNode.string);
-              break;
-          }
-        });
-
-        _getPaths(node.program).forEach(subValue => {
-          // indexes may change due to filtering: always request __all__ subValues
-          result.push(
-            subValue.replace(/^results\.(\d+|#)\./, `${blockKeys[0]}.#.`)
-          );
-        });
-        break;
-      }
-
-      result = blockKeys;
-
-      if (node.program) {
-        _getPaths(node.program).forEach(variable => {
-          result.push(variable);
-        });
-      }
-      if (node.inverse) {
-        _getPaths(node.inverse).forEach(variable => {
-          result.push(variable);
-        });
-      }
-      break;
-
-    // E.g. '{{#compare person.gender 'M'}}'
-    case "mustache":
-      if (!node.isHelper) {
-        result.push(node.id.idName);
-        break;
-      }
-
-      node.params.forEach(param => {
-        _getPaths(param).forEach(variable => {
-          result.push(variable);
-        });
-      });
-      break;
-  }
-
-  return result;
-}
+const { getTemplatePaths } = require("./inc/HandlebarsAST");
 
 const entitySerializers = {
   Base: require("./entityType/Base.js"),
@@ -310,46 +199,44 @@ module.exports = function exports(config) {
 
   this.getPaths = function getPaths(node) {
     // sanitize paths
-    return _.uniq(
-      _getPaths(node).map(path => {
-        // find and process parent references
-        const newPath = [];
-        // trim and split
-        // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim + dots
-        const nibbles = path
-          .replace(/^[\s\uFEFF\xA0.]+|[\s\uFEFF\xA0.]+$/g, "")
-          .split(".");
-        for (let i = 0; i < nibbles.length; i += 1) {
-          let currentNibble = nibbles[i];
-
-          // detect '..'
-          let parentRequested =
-            currentNibble === "" &&
-            nibbles.length >= i + 2 &&
-            nibbles[i + 1] === "" &&
-            nibbles[i + 2].indexOf("/") === 0;
-          while (parentRequested) {
-            // traverse to parent...
-            const poppedNibble = newPath.pop();
-            // parent is array iterator?
-            if (poppedNibble.match(/^(#|\d+)$/) !== null) {
-              newPath.pop();
-            }
+    return getTemplatePaths(node).map(path => {
+      // find and process parent references
+      const newPath = [];
+      // trim and split
+      // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim + dots
+      const nibbles = path
+        .replace(/^[\s\uFEFF\xA0.]+|[\s\uFEFF\xA0.]+$/g, "")
+        .split(".");
+      for (let i = 0; i < nibbles.length; i += 1) {
+        let currentNibble = nibbles[i];
+
+        // detect '..'
+        let parentRequested =
+          currentNibble === "" &&
+          nibbles.length >= i + 2 &&
+          nibbles[i + 1] === "" &&
+          nibbles[i + 2].indexOf("/") === 0;
+        while (parentRequested) {
+          // traverse to parent...
+          const poppedNibble = newPath.pop();
+          // parent is array iterator?
+          if (poppedNibble.match(/^(#|\d+)$/) !== null) {
+            newPath.pop();
+          }
 
-            i += 2;
-            // more parent refs coming...
-            if (nibbles[i] === "/") {
-              nibbles[i] = "";
-            } else {
-              currentNibble = nibbles[i].substr(1);
-              parentRequested = false;
-            }
+          i += 2;
+          // more parent refs coming...
+          if (nibbles[i] === "/") {
+            nibbles[i] = "";
+          } else {
+            currentNibble = nibbles[i].substr(1);
+            parentRequested = false;
           }
-          newPath.push(currentNibble);
         }
-        return newPath.join(".");
-      })
-    );
+        newPath.push(currentNibble);
+      }
+      return newPath.join(".");
+    });
   };
 
   this.setStxt = function setStxt(stxt) {
@@ -359,8 +246,4 @@ module.exports = function exports(config) {
   this.setSerializers = serializers => {
     Object.assign(entitySerializers, serializers);
   };
-
-  this.setDebug = function setDebug(enable) {
-    debug = enable;
-  };
 };
diff --git a/yarn.lock b/yarn.lock
index d65b920..c564a7f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -484,6 +484,15 @@ babel-generator@^6.26.0:
     source-map "^0.5.6"
     trim-right "^1.0.1"
 
+babel-helper-builder-binary-assignment-operator-visitor@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-builder-binary-assignment-operator-visitor/-/babel-helper-builder-binary-assignment-operator-visitor-6.24.1.tgz#cce4517ada356f4220bcae8a02c2b346f9a56664"
+  integrity sha1-zORReto1b0IgvK6KAsKzRvmlZmQ=
+  dependencies:
+    babel-helper-explode-assignable-expression "^6.24.1"
+    babel-runtime "^6.22.0"
+    babel-types "^6.24.1"
+
 babel-helper-call-delegate@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helper-call-delegate/-/babel-helper-call-delegate-6.24.1.tgz#ece6aacddc76e41c3461f88bfc575bd0daa2df8d"
@@ -502,6 +511,15 @@ babel-helper-define-map@^6.24.1:
     babel-types "^6.26.0"
     lodash "^4.17.4"
 
+babel-helper-explode-assignable-expression@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-explode-assignable-expression/-/babel-helper-explode-assignable-expression-6.24.1.tgz#f25b82cf7dc10433c55f70592d5746400ac22caa"
+  integrity sha1-8luCz33BBDPFX3BZLVdGQArCLKo=
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-traverse "^6.24.1"
+    babel-types "^6.24.1"
+
 babel-helper-function-name@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz#d3475b8c03ed98242a25b48351ab18399d3580a9"
@@ -541,6 +559,17 @@ babel-helper-regex@^6.24.1:
     babel-types "^6.26.0"
     lodash "^4.17.4"
 
+babel-helper-remap-async-to-generator@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-remap-async-to-generator/-/babel-helper-remap-async-to-generator-6.24.1.tgz#5ec581827ad723fecdd381f1c928390676e4551b"
+  integrity sha1-XsWBgnrXI/7N04HxySg5BnbkVRs=
+  dependencies:
+    babel-helper-function-name "^6.24.1"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+    babel-traverse "^6.24.1"
+    babel-types "^6.24.1"
+
 babel-helper-replace-supers@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helper-replace-supers/-/babel-helper-replace-supers-6.24.1.tgz#bf6dbfe43938d17369a213ca8a8bf74b6a90ab1a"
@@ -571,6 +600,30 @@ babel-plugin-check-es2015-constants@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
+babel-plugin-syntax-async-functions@^6.8.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"
+  integrity sha1-ytnK0RkbWtY0vzCuCHI5HgZHvpU=
+
+babel-plugin-syntax-exponentiation-operator@^6.8.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-exponentiation-operator/-/babel-plugin-syntax-exponentiation-operator-6.13.0.tgz#9ee7e8337290da95288201a6a57f4170317830de"
+  integrity sha1-nufoM3KQ2pUoggGmpX9BcDF4MN4=
+
+babel-plugin-syntax-trailing-function-commas@^6.22.0:
+  version "6.22.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-trailing-function-commas/-/babel-plugin-syntax-trailing-function-commas-6.22.0.tgz#ba0360937f8d06e40180a43fe0d5616fff532cf3"
+  integrity sha1-ugNgk3+NBuQBgKQ/4NVhb/9TLPM=
+
+babel-plugin-transform-async-to-generator@^6.22.0:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-async-to-generator/-/babel-plugin-transform-async-to-generator-6.24.1.tgz#6536e378aff6cb1d5517ac0e40eb3e9fc8d08761"
+  integrity sha1-ZTbjeK/2yx1VF6wOQOs+n8jQh2E=
+  dependencies:
+    babel-helper-remap-async-to-generator "^6.24.1"
+    babel-plugin-syntax-async-functions "^6.8.0"
+    babel-runtime "^6.22.0"
+
 babel-plugin-transform-es2015-arrow-functions@^6.22.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-arrow-functions/-/babel-plugin-transform-es2015-arrow-functions-6.22.0.tgz#452692cb711d5f79dc7f85e440ce41b9f244d221"
@@ -583,9 +636,10 @@ babel-plugin-transform-es2015-block-scoped-functions@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-block-scoping@^6.24.1:
+babel-plugin-transform-es2015-block-scoping@^6.23.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-block-scoping/-/babel-plugin-transform-es2015-block-scoping-6.26.0.tgz#d70f5299c1308d05c12f463813b0a09e73b1895f"
+  integrity sha1-1w9SmcEwjQXBL0Y4E7CgnnOxiV8=
   dependencies:
     babel-runtime "^6.26.0"
     babel-template "^6.26.0"
@@ -593,9 +647,10 @@ babel-plugin-transform-es2015-block-scoping@^6.24.1:
     babel-types "^6.26.0"
     lodash "^4.17.4"
 
-babel-plugin-transform-es2015-classes@^6.24.1:
+babel-plugin-transform-es2015-classes@^6.23.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-classes/-/babel-plugin-transform-es2015-classes-6.24.1.tgz#5a4c58a50c9c9461e564b4b2a3bfabc97a2584db"
+  integrity sha1-WkxYpQyclGHlZLSyo7+ryXolhNs=
   dependencies:
     babel-helper-define-map "^6.24.1"
     babel-helper-function-name "^6.24.1"
@@ -607,35 +662,40 @@ babel-plugin-transform-es2015-classes@^6.24.1:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
-babel-plugin-transform-es2015-computed-properties@^6.24.1:
+babel-plugin-transform-es2015-computed-properties@^6.22.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-computed-properties/-/babel-plugin-transform-es2015-computed-properties-6.24.1.tgz#6fe2a8d16895d5634f4cd999b6d3480a308159b3"
+  integrity sha1-b+Ko0WiV1WNPTNmZttNICjCBWbM=
   dependencies:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-plugin-transform-es2015-destructuring@^6.22.0:
+babel-plugin-transform-es2015-destructuring@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-destructuring/-/babel-plugin-transform-es2015-destructuring-6.23.0.tgz#997bb1f1ab967f682d2b0876fe358d60e765c56d"
+  integrity sha1-mXux8auWf2gtKwh2/jWNYOdlxW0=
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-duplicate-keys@^6.24.1:
+babel-plugin-transform-es2015-duplicate-keys@^6.22.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-duplicate-keys/-/babel-plugin-transform-es2015-duplicate-keys-6.24.1.tgz#73eb3d310ca969e3ef9ec91c53741a6f1576423e"
+  integrity sha1-c+s9MQypaePvnskcU3QabxV2Qj4=
   dependencies:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
-babel-plugin-transform-es2015-for-of@^6.22.0:
+babel-plugin-transform-es2015-for-of@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-for-of/-/babel-plugin-transform-es2015-for-of-6.23.0.tgz#f47c95b2b613df1d3ecc2fdb7573623c75248691"
+  integrity sha1-9HyVsrYT3x0+zC/bdXNiPHUkhpE=
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-function-name@^6.24.1:
+babel-plugin-transform-es2015-function-name@^6.22.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-function-name/-/babel-plugin-transform-es2015-function-name-6.24.1.tgz#834c89853bc36b1af0f3a4c5dbaa94fd8eacaa8b"
+  integrity sha1-g0yJhTvDaxrw86TF26qU/Y6sqos=
   dependencies:
     babel-helper-function-name "^6.24.1"
     babel-runtime "^6.22.0"
@@ -647,14 +707,25 @@ babel-plugin-transform-es2015-literals@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-modules-amd@^6.24.1:
+babel-plugin-transform-es2015-modules-amd@^6.22.0, babel-plugin-transform-es2015-modules-amd@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-amd/-/babel-plugin-transform-es2015-modules-amd-6.24.1.tgz#3b3e54017239842d6d19c3011c4bd2f00a00d154"
+  integrity sha1-Oz5UAXI5hC1tGcMBHEvS8AoA0VQ=
   dependencies:
     babel-plugin-transform-es2015-modules-commonjs "^6.24.1"
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
+babel-plugin-transform-es2015-modules-commonjs@^6.23.0:
+  version "6.26.2"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.26.2.tgz#58a793863a9e7ca870bdc5a881117ffac27db6f3"
+  integrity sha512-CV9ROOHEdrjcwhIaJNBGMBCodN+1cfkwtM1SbUHmvyy35KGT7fohbpOxkE2uLz1o6odKK2Ck/tz47z+VqQfi9Q==
+  dependencies:
+    babel-plugin-transform-strict-mode "^6.24.1"
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-types "^6.26.0"
+
 babel-plugin-transform-es2015-modules-commonjs@^6.24.1:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.26.0.tgz#0d8394029b7dc6abe1a97ef181e00758dd2e5d8a"
@@ -664,32 +735,36 @@ babel-plugin-transform-es2015-modules-commonjs@^6.24.1:
     babel-template "^6.26.0"
     babel-types "^6.26.0"
 
-babel-plugin-transform-es2015-modules-systemjs@^6.24.1:
+babel-plugin-transform-es2015-modules-systemjs@^6.23.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-systemjs/-/babel-plugin-transform-es2015-modules-systemjs-6.24.1.tgz#ff89a142b9119a906195f5f106ecf305d9407d23"
+  integrity sha1-/4mhQrkRmpBhlfXxBuzzBdlAfSM=
   dependencies:
     babel-helper-hoist-variables "^6.24.1"
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-plugin-transform-es2015-modules-umd@^6.24.1:
+babel-plugin-transform-es2015-modules-umd@^6.23.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-umd/-/babel-plugin-transform-es2015-modules-umd-6.24.1.tgz#ac997e6285cd18ed6176adb607d602344ad38468"
+  integrity sha1-rJl+YoXNGO1hdq22B9YCNErThGg=
   dependencies:
     babel-plugin-transform-es2015-modules-amd "^6.24.1"
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-plugin-transform-es2015-object-super@^6.24.1:
+babel-plugin-transform-es2015-object-super@^6.22.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-object-super/-/babel-plugin-transform-es2015-object-super-6.24.1.tgz#24cef69ae21cb83a7f8603dad021f572eb278f8d"
+  integrity sha1-JM72muIcuDp/hgPa0CH1cusnj40=
   dependencies:
     babel-helper-replace-supers "^6.24.1"
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-parameters@^6.24.1:
+babel-plugin-transform-es2015-parameters@^6.23.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-parameters/-/babel-plugin-transform-es2015-parameters-6.24.1.tgz#57ac351ab49caf14a97cd13b09f66fdf0a625f2b"
+  integrity sha1-V6w1GrScrxSpfNE7CfZv3wpiXys=
   dependencies:
     babel-helper-call-delegate "^6.24.1"
     babel-helper-get-function-arity "^6.24.1"
@@ -698,9 +773,10 @@ babel-plugin-transform-es2015-parameters@^6.24.1:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
-babel-plugin-transform-es2015-shorthand-properties@^6.24.1:
+babel-plugin-transform-es2015-shorthand-properties@^6.22.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-shorthand-properties/-/babel-plugin-transform-es2015-shorthand-properties-6.24.1.tgz#24f875d6721c87661bbd99a4622e51f14de38aa0"
+  integrity sha1-JPh11nIch2YbvZmkYi5R8U3jiqA=
   dependencies:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
@@ -711,9 +787,10 @@ babel-plugin-transform-es2015-spread@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-sticky-regex@^6.24.1:
+babel-plugin-transform-es2015-sticky-regex@^6.22.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-sticky-regex/-/babel-plugin-transform-es2015-sticky-regex-6.24.1.tgz#00c1cdb1aca71112cdf0cf6126c2ed6b457ccdbc"
+  integrity sha1-AMHNsaynERLN8M9hJsLta0V8zbw=
   dependencies:
     babel-helper-regex "^6.24.1"
     babel-runtime "^6.22.0"
@@ -725,23 +802,35 @@ babel-plugin-transform-es2015-template-literals@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-typeof-symbol@^6.22.0:
+babel-plugin-transform-es2015-typeof-symbol@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-typeof-symbol/-/babel-plugin-transform-es2015-typeof-symbol-6.23.0.tgz#dec09f1cddff94b52ac73d505c84df59dcceb372"
+  integrity sha1-3sCfHN3/lLUqxz1QXITfWdzOs3I=
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-unicode-regex@^6.24.1:
+babel-plugin-transform-es2015-unicode-regex@^6.22.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-unicode-regex/-/babel-plugin-transform-es2015-unicode-regex-6.24.1.tgz#d38b12f42ea7323f729387f18a7c5ae1faeb35e9"
+  integrity sha1-04sS9C6nMj9yk4fxinxa4frrNek=
   dependencies:
     babel-helper-regex "^6.24.1"
     babel-runtime "^6.22.0"
     regexpu-core "^2.0.0"
 
-babel-plugin-transform-regenerator@^6.24.1:
+babel-plugin-transform-exponentiation-operator@^6.22.0:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-exponentiation-operator/-/babel-plugin-transform-exponentiation-operator-6.24.1.tgz#2ab0c9c7f3098fa48907772bb813fe41e8de3a0e"
+  integrity sha1-KrDJx/MJj6SJB3cruBP+QejeOg4=
+  dependencies:
+    babel-helper-builder-binary-assignment-operator-visitor "^6.24.1"
+    babel-plugin-syntax-exponentiation-operator "^6.8.0"
+    babel-runtime "^6.22.0"
+
+babel-plugin-transform-regenerator@^6.22.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-regenerator/-/babel-plugin-transform-regenerator-6.26.0.tgz#e0703696fbde27f0a3efcacf8b4dca2f7b3a8f2f"
+  integrity sha1-4HA2lvveJ/Cj78rPi03KL3s6jy8=
   dependencies:
     regenerator-transform "^0.10.0"
 
@@ -760,34 +849,41 @@ babel-polyfill@^6.26.0:
     core-js "^2.5.0"
     regenerator-runtime "^0.10.5"
 
-babel-preset-es2015@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-preset-es2015/-/babel-preset-es2015-6.24.1.tgz#d44050d6bc2c9feea702aaf38d727a0210538939"
+babel-preset-env@^1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/babel-preset-env/-/babel-preset-env-1.7.0.tgz#dea79fa4ebeb883cd35dab07e260c1c9c04df77a"
+  integrity sha512-9OR2afuKDneX2/q2EurSftUYM0xGu4O2D9adAhVfADDhrYDaxXV0rBbevVYoY9n6nyX1PmQW/0jtpJvUNr9CHg==
   dependencies:
     babel-plugin-check-es2015-constants "^6.22.0"
+    babel-plugin-syntax-trailing-function-commas "^6.22.0"
+    babel-plugin-transform-async-to-generator "^6.22.0"
     babel-plugin-transform-es2015-arrow-functions "^6.22.0"
     babel-plugin-transform-es2015-block-scoped-functions "^6.22.0"
-    babel-plugin-transform-es2015-block-scoping "^6.24.1"
-    babel-plugin-transform-es2015-classes "^6.24.1"
-    babel-plugin-transform-es2015-computed-properties "^6.24.1"
-    babel-plugin-transform-es2015-destructuring "^6.22.0"
-    babel-plugin-transform-es2015-duplicate-keys "^6.24.1"
-    babel-plugin-transform-es2015-for-of "^6.22.0"
-    babel-plugin-transform-es2015-function-name "^6.24.1"
+    babel-plugin-transform-es2015-block-scoping "^6.23.0"
+    babel-plugin-transform-es2015-classes "^6.23.0"
+    babel-plugin-transform-es2015-computed-properties "^6.22.0"
+    babel-plugin-transform-es2015-destructuring "^6.23.0"
+    babel-plugin-transform-es2015-duplicate-keys "^6.22.0"
+    babel-plugin-transform-es2015-for-of "^6.23.0"
+    babel-plugin-transform-es2015-function-name "^6.22.0"
     babel-plugin-transform-es2015-literals "^6.22.0"
-    babel-plugin-transform-es2015-modules-amd "^6.24.1"
-    babel-plugin-transform-es2015-modules-commonjs "^6.24.1"
-    babel-plugin-transform-es2015-modules-systemjs "^6.24.1"
-    babel-plugin-transform-es2015-modules-umd "^6.24.1"
-    babel-plugin-transform-es2015-object-super "^6.24.1"
-    babel-plugin-transform-es2015-parameters "^6.24.1"
-    babel-plugin-transform-es2015-shorthand-properties "^6.24.1"
+    babel-plugin-transform-es2015-modules-amd "^6.22.0"
+    babel-plugin-transform-es2015-modules-commonjs "^6.23.0"
+    babel-plugin-transform-es2015-modules-systemjs "^6.23.0"
+    babel-plugin-transform-es2015-modules-umd "^6.23.0"
+    babel-plugin-transform-es2015-object-super "^6.22.0"
+    babel-plugin-transform-es2015-parameters "^6.23.0"
+    babel-plugin-transform-es2015-shorthand-properties "^6.22.0"
     babel-plugin-transform-es2015-spread "^6.22.0"
-    babel-plugin-transform-es2015-sticky-regex "^6.24.1"
+    babel-plugin-transform-es2015-sticky-regex "^6.22.0"
     babel-plugin-transform-es2015-template-literals "^6.22.0"
-    babel-plugin-transform-es2015-typeof-symbol "^6.22.0"
-    babel-plugin-transform-es2015-unicode-regex "^6.24.1"
-    babel-plugin-transform-regenerator "^6.24.1"
+    babel-plugin-transform-es2015-typeof-symbol "^6.23.0"
+    babel-plugin-transform-es2015-unicode-regex "^6.22.0"
+    babel-plugin-transform-exponentiation-operator "^6.22.0"
+    babel-plugin-transform-regenerator "^6.22.0"
+    browserslist "^3.2.6"
+    invariant "^2.2.2"
+    semver "^5.3.0"
 
 babel-register@^6.26.0:
   version "6.26.0"
@@ -968,6 +1064,14 @@ browser-stdout@1.3.1:
   resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.1.tgz#baa559ee14ced73452229bad7326467c61fabd60"
   integrity sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==
 
+browserslist@^3.2.6:
+  version "3.2.8"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-3.2.8.tgz#b0005361d6471f0f5952797a76fc985f1f978fc6"
+  integrity sha512-WHVocJYavUwVgVViC0ORikPHQquXwVh939TaelZ4WDqpWgTX/FsGhl/+P4qBUAGcRvtOgDgC+xftNWWp2RUTAQ==
+  dependencies:
+    caniuse-lite "^1.0.30000844"
+    electron-to-chromium "^1.3.47"
+
 bson-stream@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/bson-stream/-/bson-stream-0.0.8.tgz#5fd9f1df6c34c20005948b6e031a33bb1d11e83f"
@@ -1053,6 +1157,11 @@ camelcase@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
 
+caniuse-lite@^1.0.30000844:
+  version "1.0.30000918"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000918.tgz#6288f79da3c5c8b45e502f47ad8f3eb91f1379a9"
+  integrity sha512-CAZ9QXGViBvhHnmIHhsTPSWFBujDaelKnUj7wwImbyQRxmXynYqKGi3UaZTSz9MoVh+1EVxOS/DFIkrJYgR3aw==
+
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
@@ -1232,6 +1341,11 @@ commander@^2.11.0:
   version "2.12.2"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.12.2.tgz#0f5946c427ed9ec0d91a46bb9def53e54650e555"
 
+commander@~2.17.1:
+  version "2.17.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
+  integrity sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==
+
 communibase-connector-js@0.5.11:
   version "0.5.11"
   resolved "https://registry.yarnpkg.com/communibase-connector-js/-/communibase-connector-js-0.5.11.tgz#1b1ea5b30053adf26a60f69c074f323491544dfb"
@@ -1607,6 +1721,11 @@ ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
 
+electron-to-chromium@^1.3.47:
+  version "1.3.90"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.90.tgz#b4c51b8303beff18f2b74817402bf4898e09558a"
+  integrity sha512-IjJZKRhFbWSOX1w0sdIXgp4CMRguu6UYcTckyFF/Gjtemsu/25eZ+RXwFlV+UWcIueHyQA1UnRJxocTpH5NdGA==
+
 encodeurl@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.1.tgz#79e3d58655346909fe6f0f45a5de68103b294d20"
@@ -2316,23 +2435,36 @@ grunt@^1.0.1:
     path-is-absolute "~1.0.0"
     rimraf "~2.2.8"
 
-handlebars@^2.0.0:
+"handlebars-v2@npm:handlebars@2.0.0":
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-2.0.0.tgz#6e9d7f8514a3467fa5e9f82cc158ecfc1d5ac76f"
+  integrity sha1-bp1/hRSjRn+l6fgswVjs/B1ax28=
   dependencies:
     optimist "~0.3"
   optionalDependencies:
     uglify-js "~2.3"
 
-handlebars@^3.0.1:
+"handlebars-v3@npm:handlebars@3.0.3", handlebars@^3.0.1:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-3.0.3.tgz#0e09651a2f0fb3c949160583710d551f92e6d2ad"
+  integrity sha1-DgllGi8Ps8lJFgWDcQ1VH5Lm0q0=
   dependencies:
     optimist "^0.6.1"
     source-map "^0.1.40"
   optionalDependencies:
     uglify-js "~2.3"
 
+"handlebars-v4@npm:handlebars@4.0.12", handlebars@>=2.0.0:
+  version "4.0.12"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.12.tgz#2c15c8a96d46da5e266700518ba8cb8d919d5bc5"
+  integrity sha512-RhmTekP+FZL+XNhwS1Wf+bTTZpdLougwt5pcgA1tuz6Jcx0fpH/7z0qd71RKnZHBCxIRBHfBOnio4gViPemNzA==
+  dependencies:
+    async "^2.5.0"
+    optimist "^0.6.1"
+    source-map "^0.6.1"
+  optionalDependencies:
+    uglify-js "^3.1.4"
+
 handlebars@^4.0.6:
   version "4.0.11"
   resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.11.tgz#630a35dfe0294bc281edae6ffc5d329fc7982dcc"
@@ -4295,6 +4427,11 @@ source-map@^0.5.0, source-map@^0.5.6, source-map@~0.5.1:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
+source-map@^0.6.1, source-map@~0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+  integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==
+
 spdx-correct@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-1.0.2.tgz#4b3073d933ff51f3912f03ac5519498a4150db40"
@@ -4587,6 +4724,14 @@ uglify-js@^2.6:
   optionalDependencies:
     uglify-to-browserify "~1.0.0"
 
+uglify-js@^3.1.4:
+  version "3.4.9"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.4.9.tgz#af02f180c1207d76432e473ed24a28f4a782bae3"
+  integrity sha512-8CJsbKOtEbnJsTyv6LE6m6ZKniqMiFWmm9sRbopbkGs3gMPPfd3Fh8iIA4Ykv5MgaTbqHr4BaoGLJLZNhsrW1Q==
+  dependencies:
+    commander "~2.17.1"
+    source-map "~0.6.1"
+
 uglify-js@~2.3:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.3.6.tgz#fa0984770b428b7a9b2a8058f46355d14fef211a"