diff --git a/.travis.yml b/.travis.yml
index a9d0b8c..1c75c06 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,7 @@ before_install:
 before_script:
   - npm prune
   - npm run benchmark | commentator
+  - npm run js-cpa | commentator
   - npm run coverage
   - npm run lint
 after_success:
diff --git a/package.json b/package.json
index 602c7aa..6f0abc5 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,8 @@
     "test:watch": "ava --watch",
     "build": "rollup -c ./config/rollup.config.js",
     "lint": "git ls-files | grep '.ts$' | xargs tslint",
-    "prettify": "git ls-files | grep '.ts$' | xargs prettier --print-width 120 --write --single-quote --no-semi --no-bracket-spacing"
+    "prettify": "git ls-files | grep '.ts$' | xargs prettier --print-width 120 --write --single-quote --no-semi --no-bracket-spacing",
+    "js-cpa": "js-cpa .dist/observable-air.js"
   },
   "author": "",
   "license": "ISC",
@@ -28,6 +29,7 @@
     "cz-conventional-changelog": "^2.0.0",
     "gh-pages": "^1.0.0",
     "ghooks": "^2.0.0",
+    "js-cpa": "^0.0.3",
     "nyc": "^11.0.3",
     "prettify": "^0.1.7",
     "request-promise": "^4.1.1",
diff --git a/yarn.lock b/yarn.lock
index b904446..286ae64 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6,9 +6,9 @@
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/@ava/babel-plugin-throws-helper/-/babel-plugin-throws-helper-2.0.0.tgz#2fc1fe3c211a71071a4eca7b8f7af5842cd1ae7c"
 
-"@ava/babel-preset-stage-4@^1.0.0":
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/@ava/babel-preset-stage-4/-/babel-preset-stage-4-1.0.0.tgz#a613b5e152f529305422546b072d47facfb26291"
+"@ava/babel-preset-stage-4@^1.1.0":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@ava/babel-preset-stage-4/-/babel-preset-stage-4-1.1.0.tgz#ae60be881a0babf7d35f52aba770d1f6194f76bd"
   dependencies:
     babel-plugin-check-es2015-constants "^6.8.0"
     babel-plugin-syntax-trailing-function-commas "^6.20.0"
@@ -30,17 +30,24 @@
     "@ava/babel-plugin-throws-helper" "^2.0.0"
     babel-plugin-espower "^2.3.2"
 
-"@ava/pretty-format@^1.1.0":
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/@ava/pretty-format/-/pretty-format-1.1.0.tgz#d0a57d25eb9aeab9643bdd1a030642b91c123e28"
+"@ava/write-file-atomic@^2.2.0":
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/@ava/write-file-atomic/-/write-file-atomic-2.2.0.tgz#d625046f3495f1f5e372135f473909684b429247"
   dependencies:
-    ansi-styles "^2.2.1"
-    esutils "^2.0.2"
+    graceful-fs "^4.1.11"
+    imurmurhash "^0.1.4"
+    slide "^1.1.5"
 
 "@comandeer/babel-plugin-banner@^1.0.0":
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/@comandeer/babel-plugin-banner/-/babel-plugin-banner-1.0.0.tgz#40bcce0bbee084b5b02545a33635d053c248356f"
 
+"@concordance/react@^1.0.0":
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/@concordance/react/-/react-1.0.0.tgz#fcf3cad020e5121bfd1c61d05bc3516aac25f734"
+  dependencies:
+    arrify "^1.0.1"
+
 "@semantic-release/commit-analyzer@^2.0.0":
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/@semantic-release/commit-analyzer/-/commit-analyzer-2.0.0.tgz#924d1e2c30167c6a472bed9f66ee8f8e077489b2"
@@ -114,6 +121,10 @@ ansi-align@^1.1.0:
   dependencies:
     string-width "^1.0.1"
 
+ansi-escapes@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-2.0.0.tgz#5bae52be424878dd9783e8910e3fc2922e83c81b"
+
 ansi-regex@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
@@ -122,9 +133,9 @@ ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
-ansi-styles@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.0.0.tgz#5404e93a544c4fec7f048262977bebfe3155e0c1"
+ansi-styles@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.1.0.tgz#09c202d5c917ec23188caa5c9cb9179cd9547750"
   dependencies:
     color-convert "^1.0.0"
 
@@ -244,7 +255,7 @@ async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
 
-async@2.1.4:
+async@2.1.4, async@^2.0.1:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/async/-/async-2.1.4.tgz#2d2160c7788032e4dd6cbe2502f1f9a2c8f6cde4"
   dependencies:
@@ -254,12 +265,6 @@ async@^1.4.0:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
-async@^2.0.1:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.1.2.tgz#612a4ab45ef42a70cde806bad86ee6db047e8385"
-  dependencies:
-    lodash "^4.14.0"
-
 async@~0.1.22:
   version "0.1.22"
   resolved "https://registry.yarnpkg.com/async/-/async-0.1.22.tgz#0fc1aaa088a0e3ef0ebe2d8831bab0dcf8845061"
@@ -286,20 +291,22 @@ ava-init@^0.2.0:
     read-pkg-up "^2.0.0"
     write-pkg "^2.0.0"
 
-ava@^0.19.1:
-  version "0.19.1"
-  resolved "https://registry.yarnpkg.com/ava/-/ava-0.19.1.tgz#43dd82435ad19b3980ffca2488f05daab940b273"
+ava@^0.20.0:
+  version "0.20.0"
+  resolved "https://registry.yarnpkg.com/ava/-/ava-0.20.0.tgz#bdc0dd36453d7255e9f733305ab370c248381e41"
   dependencies:
-    "@ava/babel-preset-stage-4" "^1.0.0"
+    "@ava/babel-preset-stage-4" "^1.1.0"
     "@ava/babel-preset-transform-test-files" "^3.0.0"
-    "@ava/pretty-format" "^1.1.0"
+    "@ava/write-file-atomic" "^2.2.0"
+    "@concordance/react" "^1.0.0"
+    ansi-escapes "^2.0.0"
+    ansi-styles "^3.1.0"
     arr-flatten "^1.0.1"
     array-union "^1.0.1"
     array-uniq "^1.0.2"
     arrify "^1.0.0"
     auto-bind "^1.1.0"
     ava-init "^0.2.0"
-    babel-code-frame "^6.16.0"
     babel-core "^6.17.0"
     bluebird "^3.0.0"
     caching-transform "^1.0.0"
@@ -313,12 +320,11 @@ ava@^0.19.1:
     co-with-promise "^4.6.0"
     code-excerpt "^2.1.0"
     common-path-prefix "^1.0.0"
+    concordance "^2.0.0"
     convert-source-map "^1.2.0"
     core-assert "^0.2.0"
     currently-unhandled "^0.4.1"
     debug "^2.2.0"
-    diff "^3.0.1"
-    diff-match-patch "^1.0.0"
     dot-prop "^4.1.0"
     empower-core "^0.6.1"
     equal-length "^1.0.0"
@@ -328,28 +334,27 @@ ava@^0.19.1:
     get-port "^3.0.0"
     globby "^6.0.0"
     has-flag "^2.0.0"
-    hullabaloo-config-manager "^1.0.0"
+    hullabaloo-config-manager "^1.1.0"
     ignore-by-default "^1.0.0"
+    import-local "^0.1.1"
     indent-string "^3.0.0"
     is-ci "^1.0.7"
     is-generator-fn "^1.0.0"
     is-obj "^1.0.0"
     is-observable "^0.2.0"
     is-promise "^2.1.0"
-    jest-diff "19.0.0"
-    jest-snapshot "19.0.2"
     js-yaml "^3.8.2"
     last-line-stream "^1.0.0"
+    lodash.clonedeepwith "^4.5.0"
     lodash.debounce "^4.0.3"
     lodash.difference "^4.3.0"
     lodash.flatten "^4.2.0"
-    lodash.isequal "^4.5.0"
     loud-rejection "^1.2.0"
+    make-dir "^1.0.0"
     matcher "^0.1.1"
     md5-hex "^2.0.0"
     meow "^3.7.0"
-    mkdirp "^0.5.1"
-    ms "^0.7.1"
+    ms "^1.0.0"
     multimatch "^2.1.0"
     observable-to-promise "^0.5.0"
     option-chain "^0.1.0"
@@ -366,6 +371,7 @@ ava@^0.19.1:
     strip-bom-buf "^1.0.0"
     supports-color "^3.2.3"
     time-require "^0.1.2"
+    trim-off-newlines "^1.0.1"
     unique-temp-dir "^1.0.0"
     update-notifier "^2.1.0"
 
@@ -377,7 +383,7 @@ aws4@^1.2.1:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.6.0.tgz#83ef5ca860b2b32e4a0deedee8c771b9db57471e"
 
-babel-code-frame@^6.16.0, babel-code-frame@^6.22.0:
+babel-code-frame@^6.22.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.22.0.tgz#027620bee567a88c32561574e7fd0801d33118e4"
   dependencies:
@@ -409,7 +415,7 @@ babel-core@^6.17.0, babel-core@^6.21.0, babel-core@^6.24.1:
     slash "^1.0.0"
     source-map "^0.5.0"
 
-babel-generator@^6.1.0, babel-generator@^6.18.0, babel-generator@^6.24.1:
+babel-generator@^6.1.0, babel-generator@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.24.1.tgz#e715f486c58ded25649d888944d52aa07c5d9497"
   dependencies:
@@ -422,6 +428,19 @@ babel-generator@^6.1.0, babel-generator@^6.18.0, babel-generator@^6.24.1:
     source-map "^0.5.0"
     trim-right "^1.0.1"
 
+babel-generator@^6.18.0, babel-generator@^6.25.0:
+  version "6.25.0"
+  resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.25.0.tgz#33a1af70d5f2890aeb465a4a7793c1df6a9ea9fc"
+  dependencies:
+    babel-messages "^6.23.0"
+    babel-runtime "^6.22.0"
+    babel-types "^6.25.0"
+    detect-indent "^4.0.0"
+    jsesc "^1.3.0"
+    lodash "^4.2.0"
+    source-map "^0.5.0"
+    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"
@@ -831,7 +850,16 @@ babel-traverse@^6.18.0, babel-traverse@^6.24.1:
     invariant "^2.2.0"
     lodash "^4.2.0"
 
-babel-types@^6.18.0, babel-types@^6.24.1:
+babel-types@^6.18.0, babel-types@^6.25.0:
+  version "6.25.0"
+  resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.25.0.tgz#70afb248d5660e5d18f811d91c8303b54134a18e"
+  dependencies:
+    babel-runtime "^6.22.0"
+    esutils "^2.0.2"
+    lodash "^4.2.0"
+    to-fast-properties "^1.0.1"
+
+babel-types@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.24.1.tgz#a136879dc15b3606bda0d90c1fc74304c2ff0975"
   dependencies:
@@ -840,13 +868,17 @@ babel-types@^6.18.0, babel-types@^6.24.1:
     lodash "^4.2.0"
     to-fast-properties "^1.0.1"
 
-babylon@^6.1.0, babylon@^6.11.0, babylon@^6.13.0:
+babylon@^6.1.0, babylon@^6.15.0:
+  version "6.16.1"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.16.1.tgz#30c5a22f481978a9e7f8cdfdf496b11d94b404d3"
+
+babylon@^6.11.0:
   version "6.14.1"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.14.1.tgz#956275fab72753ad9b3435d7afe58f8bf0a29815"
 
-babylon@^6.15.0:
-  version "6.16.1"
-  resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.16.1.tgz#30c5a22f481978a9e7f8cdfdf496b11d94b404d3"
+babylon@^6.17.4:
+  version "6.17.4"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.17.4.tgz#3e8b7402b88d22c3423e137a1577883b15ff869a"
 
 balanced-match@^0.4.1:
   version "0.4.2"
@@ -907,7 +939,7 @@ boxen@^1.0.0:
     term-size "^0.1.0"
     widest-line "^1.0.0"
 
-brace-expansion@^1.0.0, brace-expansion@^1.1.7:
+brace-expansion@^1.1.7:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.7.tgz#3effc3c50e000531fb720eaff80f0ae8ef23cf59"
   dependencies:
@@ -974,7 +1006,7 @@ camelcase@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
 
-camelcase@^4.0.0:
+camelcase@^4.0.0, camelcase@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
 
@@ -1005,7 +1037,7 @@ chalk@^0.4.0:
     has-color "~0.1.0"
     strip-ansi "~0.1.0"
 
-chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
+chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -1015,6 +1047,14 @@ chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
+chalk@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.0.1.tgz#dbec49436d2ae15f536114e76d14656cdbc0f44d"
+  dependencies:
+    ansi-styles "^3.1.0"
+    escape-string-regexp "^1.0.5"
+    supports-color "^4.0.0"
+
 chokidar@^1.4.2:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.6.1.tgz#2f4447ab5e96e50fb3d789fd90d4c72e0e4c70c2"
@@ -1185,6 +1225,22 @@ concat-stream@^1.5.2:
     readable-stream "~2.0.0"
     typedarray "~0.0.5"
 
+concordance@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/concordance/-/concordance-2.0.0.tgz#c3c5dbffa83c29537df202bded8fa1d6aa94e805"
+  dependencies:
+    esutils "^2.0.2"
+    fast-diff "^1.1.1"
+    function-name-support "^0.2.0"
+    js-string-escape "^1.0.1"
+    lodash.clonedeep "^4.5.0"
+    lodash.flattendeep "^4.4.0"
+    lodash.merge "^4.6.0"
+    md5-hex "^2.0.0"
+    moment "^2.18.1"
+    semver "^5.3.0"
+    well-known-symbols "^1.0.0"
+
 config-chain@~1.1.5, config-chain@~1.1.8:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/config-chain/-/config-chain-1.1.11.tgz#aba09747dfbe4c3e70e766a6e41586e1859fc6f2"
@@ -1326,7 +1382,7 @@ debug-log@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/debug-log/-/debug-log-1.0.1.tgz#2307632d4c04382b8df8a32f70b895046d52745f"
 
-debug@2, debug@^2.1.1, debug@^2.2.0:
+debug@2, debug@^2.1.1, debug@^2.2.0, debug@^2.6.3:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.3.tgz#0f7eb8c30965ec08c72accfa0130c8b79984141d"
   dependencies:
@@ -1371,11 +1427,7 @@ dezalgo@^1.0.1:
     asap "^2.0.0"
     wrappy "1"
 
-diff-match-patch@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/diff-match-patch/-/diff-match-patch-1.0.0.tgz#1cc3c83a490d67f95d91e39f6ad1f2e086b63048"
-
-diff@^3.0.0, diff@^3.0.1, diff@^3.2.0:
+diff@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.2.0.tgz#c9ce393a4b7cbd0b058a725c93df299027868ff9"
 
@@ -1532,6 +1584,10 @@ extsprintf@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.0.2.tgz#e1080e0658e300b06294990cc70e1502235fd550"
 
+fast-diff@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/fast-diff/-/fast-diff-1.1.1.tgz#0aea0e4e605b6a2189f0e936d4b7fbaf1b7cfd9b"
+
 figures@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
@@ -1564,14 +1620,14 @@ find-parent-dir@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/find-parent-dir/-/find-parent-dir-0.3.0.tgz#33c44b429ab2b2f0646299c5f9f718f376ff8d54"
 
-find-up@^1.0.0, find-up@^1.1.2:
+find-up@^1.0.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
   dependencies:
     path-exists "^2.0.0"
     pinkie-promise "^2.0.0"
 
-find-up@^2.0.0:
+find-up@^2.0.0, find-up@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-2.1.0.tgz#45d1b7e506c717ddd482775a2b77920a3c0c57a7"
   dependencies:
@@ -1616,7 +1672,7 @@ foreachasync@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/foreachasync/-/foreachasync-3.0.0.tgz#5502987dc8714be3392097f32e0071c9dee07cf6"
 
-foreground-child@^1.3.3, foreground-child@^1.5.3:
+foreground-child@^1.5.3, foreground-child@^1.5.6:
   version "1.5.6"
   resolved "https://registry.yarnpkg.com/foreground-child/-/foreground-child-1.5.6.tgz#4fd71ad2dfde96789b980a5c0a295937cb2f5ce9"
   dependencies:
@@ -1683,6 +1739,10 @@ fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
     mkdirp ">=0.5 0"
     rimraf "2"
 
+function-name-support@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/function-name-support/-/function-name-support-0.2.0.tgz#55d3bfaa6eafd505a50f9bc81fdf57564a0bb071"
+
 gauge@~1.2.0:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-1.2.7.tgz#e9cec5483d3d4ee0ef44b60a7d99e4935e136d93"
@@ -2082,9 +2142,9 @@ https-proxy-agent@^1.0.0:
     debug "2"
     extend "3"
 
-hullabaloo-config-manager@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/hullabaloo-config-manager/-/hullabaloo-config-manager-1.0.0.tgz#70403e68afa009a577bb134306bb71b6b45aaa70"
+hullabaloo-config-manager@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/hullabaloo-config-manager/-/hullabaloo-config-manager-1.1.1.tgz#1d9117813129ad035fd9e8477eaf066911269fe3"
   dependencies:
     dot-prop "^4.1.0"
     es6-error "^4.0.2"
@@ -2097,8 +2157,9 @@ hullabaloo-config-manager@^1.0.0:
     lodash.merge "^4.6.0"
     md5-hex "^2.0.0"
     package-hash "^2.0.0"
-    pkg-dir "^1.0.0"
-    resolve-from "^2.0.0"
+    pkg-dir "^2.0.0"
+    resolve-from "^3.0.0"
+    safe-buffer "^5.0.1"
 
 iconv-lite@~0.2.11:
   version "0.2.11"
@@ -2108,6 +2169,13 @@ ignore-by-default@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ignore-by-default/-/ignore-by-default-1.0.1.tgz#48ca6d72f6c6a3af00a9ad4ae6876be3889e2b09"
 
+import-local@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/import-local/-/import-local-0.1.1.tgz#b1179572aacdc11c6a91009fb430dbcab5f668a8"
+  dependencies:
+    pkg-dir "^2.0.0"
+    resolve-cwd "^2.0.0"
+
 imurmurhash@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
@@ -2320,123 +2388,68 @@ isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
-istanbul-lib-coverage@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-1.0.2.tgz#87a0c015b6910651cb3b184814dfb339337e25e1"
+istanbul-lib-coverage@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-1.1.1.tgz#73bfb998885299415c93d38a3e9adf784a77a9da"
 
-istanbul-lib-hook@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-hook/-/istanbul-lib-hook-1.0.5.tgz#6ca3d16d60c5f4082da39f7c5cd38ea8a772b88e"
+istanbul-lib-hook@^1.0.7:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-hook/-/istanbul-lib-hook-1.0.7.tgz#dd6607f03076578fe7d6f2a630cf143b49bacddc"
   dependencies:
     append-transform "^0.4.0"
 
-istanbul-lib-instrument@^1.7.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.7.0.tgz#b8e0dc25709bb44e17336ab47b7bb5c97c23f659"
+istanbul-lib-instrument@^1.7.3:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.7.3.tgz#925b239163eabdd68cc4048f52c2fa4f899ecfa7"
   dependencies:
     babel-generator "^6.18.0"
     babel-template "^6.16.0"
     babel-traverse "^6.18.0"
     babel-types "^6.18.0"
-    babylon "^6.13.0"
-    istanbul-lib-coverage "^1.0.2"
+    babylon "^6.17.4"
+    istanbul-lib-coverage "^1.1.1"
     semver "^5.3.0"
 
-istanbul-lib-report@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-report/-/istanbul-lib-report-1.0.0.tgz#d83dac7f26566b521585569367fe84ccfc7aaecb"
+istanbul-lib-report@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-report/-/istanbul-lib-report-1.1.1.tgz#f0e55f56655ffa34222080b7a0cd4760e1405fc9"
   dependencies:
-    istanbul-lib-coverage "^1.0.2"
+    istanbul-lib-coverage "^1.1.1"
     mkdirp "^0.5.1"
     path-parse "^1.0.5"
     supports-color "^3.1.2"
 
-istanbul-lib-source-maps@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-source-maps/-/istanbul-lib-source-maps-1.1.1.tgz#f8c8c2e8f2160d1d91526d97e5bd63b2079af71c"
+istanbul-lib-source-maps@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-source-maps/-/istanbul-lib-source-maps-1.2.1.tgz#a6fe1acba8ce08eebc638e572e294d267008aa0c"
   dependencies:
-    istanbul-lib-coverage "^1.0.2"
+    debug "^2.6.3"
+    istanbul-lib-coverage "^1.1.1"
     mkdirp "^0.5.1"
-    rimraf "^2.4.4"
+    rimraf "^2.6.1"
     source-map "^0.5.3"
 
-istanbul-reports@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/istanbul-reports/-/istanbul-reports-1.0.2.tgz#4e8366abe6fa746cc1cd6633f108de12cc6ac6fa"
+istanbul-reports@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/istanbul-reports/-/istanbul-reports-1.1.1.tgz#042be5c89e175bc3f86523caab29c014e77fee4e"
   dependencies:
     handlebars "^4.0.3"
 
-jest-diff@19.0.0, jest-diff@^19.0.0:
-  version "19.0.0"
-  resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-19.0.0.tgz#d1563cfc56c8b60232988fbc05d4d16ed90f063c"
-  dependencies:
-    chalk "^1.1.3"
-    diff "^3.0.0"
-    jest-matcher-utils "^19.0.0"
-    pretty-format "^19.0.0"
-
-jest-file-exists@^19.0.0:
-  version "19.0.0"
-  resolved "https://registry.yarnpkg.com/jest-file-exists/-/jest-file-exists-19.0.0.tgz#cca2e587a11ec92e24cfeab3f8a94d657f3fceb8"
-
-jest-matcher-utils@^19.0.0:
-  version "19.0.0"
-  resolved "https://registry.yarnpkg.com/jest-matcher-utils/-/jest-matcher-utils-19.0.0.tgz#5ecd9b63565d2b001f61fbf7ec4c7f537964564d"
-  dependencies:
-    chalk "^1.1.3"
-    pretty-format "^19.0.0"
-
-jest-message-util@^19.0.0:
-  version "19.0.0"
-  resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-19.0.0.tgz#721796b89c0e4d761606f9ba8cb828a3b6246416"
-  dependencies:
-    chalk "^1.1.1"
-    micromatch "^2.3.11"
-
-jest-mock@^19.0.0:
-  version "19.0.0"
-  resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-19.0.0.tgz#67038641e9607ab2ce08ec4a8cb83aabbc899d01"
-
-jest-snapshot@19.0.2:
-  version "19.0.2"
-  resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-19.0.2.tgz#9c1b216214f7187c38bfd5c70b1efab16b0ff50b"
-  dependencies:
-    chalk "^1.1.3"
-    jest-diff "^19.0.0"
-    jest-file-exists "^19.0.0"
-    jest-matcher-utils "^19.0.0"
-    jest-util "^19.0.2"
-    natural-compare "^1.4.0"
-    pretty-format "^19.0.0"
-
-jest-util@^19.0.2:
-  version "19.0.2"
-  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-19.0.2.tgz#e0a0232a2ab9e6b2b53668bdb3534c2b5977ed41"
-  dependencies:
-    chalk "^1.1.1"
-    graceful-fs "^4.1.6"
-    jest-file-exists "^19.0.0"
-    jest-message-util "^19.0.0"
-    jest-mock "^19.0.0"
-    jest-validate "^19.0.2"
-    leven "^2.0.0"
-    mkdirp "^0.5.1"
-
-jest-validate@^19.0.2:
-  version "19.0.2"
-  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-19.0.2.tgz#dc534df5f1278d5b63df32b14241d4dbf7244c0c"
-  dependencies:
-    chalk "^1.1.1"
-    jest-matcher-utils "^19.0.0"
-    leven "^2.0.0"
-    pretty-format "^19.0.0"
-
 jodid25519@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/jodid25519/-/jodid25519-1.0.2.tgz#06d4912255093419477d425633606e0e90782967"
   dependencies:
     jsbn "~0.1.0"
 
+js-cpa@^0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/js-cpa/-/js-cpa-0.0.3.tgz#59186e1f26eaa469d4bdab8306033b5b5335b686"
+  dependencies:
+    babel-generator "^6.25.0"
+    babel-types "^6.25.0"
+    babylon "^6.17.4"
+    chalk "^2.0.1"
+
 js-prettify@~1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/js-prettify/-/js-prettify-1.4.0.tgz#f66fdf59f397e9e0937cb16a5a237346335e7eb3"
@@ -2445,6 +2458,10 @@ js-prettify@~1.4.0:
     mkdirp "0.3.5"
     nopt "~2.1.1"
 
+js-string-escape@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/js-string-escape/-/js-string-escape-1.0.1.tgz#e2625badbc0d67c7533e9edc1068c587ae4137ef"
+
 js-tokens@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.1.tgz#08e9f132484a2c45a30907e9dc4d5567b7f114d7"
@@ -2567,10 +2584,6 @@ lcov-parse@0.0.10:
   version "0.0.10"
   resolved "https://registry.yarnpkg.com/lcov-parse/-/lcov-parse-0.0.10.tgz#1b0b8ff9ac9c7889250582b70b71315d9da6d9a3"
 
-leven@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
-
 load-json-file@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
@@ -2784,6 +2797,12 @@ magic-string@^0.19.0:
   dependencies:
     vlq "^0.2.1"
 
+make-dir@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.0.0.tgz#97a011751e91dd87cfadef58832ebb04936de978"
+  dependencies:
+    pify "^2.3.0"
+
 manage-path@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/manage-path/-/manage-path-2.0.0.tgz#f4cf8457b926eeee2a83b173501414bc76eb9597"
@@ -2818,6 +2837,12 @@ md5-o-matic@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/md5-o-matic/-/md5-o-matic-0.1.1.tgz#822bccd65e117c514fab176b25945d54100a03c3"
 
+mem@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
+  dependencies:
+    mimic-fn "^1.0.0"
+
 meow@^3.3.0, meow@^3.7.0:
   version "3.7.0"
   resolved "https://registry.yarnpkg.com/meow/-/meow-3.7.0.tgz#72cb668b425228290abbfa856892587308a801fb"
@@ -2882,13 +2907,7 @@ minimatch@0.3:
     lru-cache "2"
     sigmund "~1.0.0"
 
-minimatch@^3.0.0, minimatch@^3.0.2:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.3.tgz#2a4e4090b96b2db06a9d7df01055a62a77c9b774"
-  dependencies:
-    brace-expansion "^1.0.0"
-
-minimatch@^3.0.4:
+minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
   dependencies:
@@ -2919,13 +2938,17 @@ mkdirp@0.3.5:
   dependencies:
     minimist "0.0.8"
 
+moment@^2.18.1:
+  version "2.18.1"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.18.1.tgz#c36193dd3ce1c2eed2adb7c802dbbc77a81b1c0f"
+
 ms@0.7.2:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
 
-ms@^0.7.1:
-  version "0.7.3"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.3.tgz#708155a5e44e33f5fd0fc53e81d0d40a91be1fff"
+ms@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-1.0.0.tgz#59adcd22edc543f7b5381862d31387b1f4bc9473"
 
 multimatch@^2.1.0:
   version "2.1.0"
@@ -2940,10 +2963,6 @@ nan@^2.3.0:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.6.2.tgz#e4ff34e6c95fdfb5aecc08de6596f43605a7db45"
 
-natural-compare@^1.4.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
-
 nerf-dart@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/nerf-dart/-/nerf-dart-1.0.0.tgz#e6dab7febf5ad816ea81cf5c629c5a0ebde72c1a"
@@ -3088,9 +3107,9 @@ number-is-nan@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
 
-nyc@^10.0.0:
-  version "10.2.0"
-  resolved "https://registry.yarnpkg.com/nyc/-/nyc-10.2.0.tgz#facd90240600c9aa4dd81ea99c2fb6a85c53de0c"
+nyc@^11.0.3:
+  version "11.0.3"
+  resolved "https://registry.yarnpkg.com/nyc/-/nyc-11.0.3.tgz#0c28bc669a851621709bf7a08503034bee3812b6"
   dependencies:
     archy "^1.0.0"
     arrify "^1.0.1"
@@ -3099,15 +3118,15 @@ nyc@^10.0.0:
     debug-log "^1.0.1"
     default-require-extensions "^1.0.0"
     find-cache-dir "^0.1.1"
-    find-up "^1.1.2"
+    find-up "^2.1.0"
     foreground-child "^1.5.3"
     glob "^7.0.6"
-    istanbul-lib-coverage "^1.0.2"
-    istanbul-lib-hook "^1.0.5"
-    istanbul-lib-instrument "^1.7.0"
-    istanbul-lib-report "^1.0.0"
-    istanbul-lib-source-maps "^1.1.1"
-    istanbul-reports "^1.0.2"
+    istanbul-lib-coverage "^1.1.1"
+    istanbul-lib-hook "^1.0.7"
+    istanbul-lib-instrument "^1.7.3"
+    istanbul-lib-report "^1.1.1"
+    istanbul-lib-source-maps "^1.2.1"
+    istanbul-reports "^1.1.1"
     md5-hex "^1.2.0"
     merge-source-map "^1.0.2"
     micromatch "^2.3.11"
@@ -3115,10 +3134,10 @@ nyc@^10.0.0:
     resolve-from "^2.0.0"
     rimraf "^2.5.4"
     signal-exit "^3.0.1"
-    spawn-wrap "1.2.4"
-    test-exclude "^4.0.0"
-    yargs "^7.0.2"
-    yargs-parser "^4.0.2"
+    spawn-wrap "^1.3.7"
+    test-exclude "^4.1.1"
+    yargs "^8.0.1"
+    yargs-parser "^5.0.0"
 
 oauth-sign@~0.8.1:
   version "0.8.2"
@@ -3142,13 +3161,7 @@ observable-to-promise@^0.5.0:
     is-observable "^0.2.0"
     symbol-observable "^1.0.4"
 
-once@^1.3.0, once@^1.3.3:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
-  dependencies:
-    wrappy "1"
-
-once@~1.3.0:
+once@^1.3.0, once@^1.3.3, once@~1.3.0:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/once/-/once-1.3.3.tgz#b2e261557ce4c314ec8304f3fa82663e4297ca20"
   dependencies:
@@ -3186,11 +3199,13 @@ os-homedir@^1.0.0, os-homedir@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
 
-os-locale@^1.4.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
+os-locale@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.0.0.tgz#15918ded510522b81ee7ae5a309d54f639fc39a4"
   dependencies:
+    execa "^0.5.0"
     lcid "^1.0.0"
+    mem "^1.1.0"
 
 os-tmpdir@^1.0.0, os-tmpdir@^1.0.1:
   version "1.0.2"
@@ -3331,7 +3346,7 @@ performance-now@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-0.2.0.tgz#33ef30c5c77d4ea21c5a53869d91b56d8f2555e5"
 
-pify@^2.0.0:
+pify@^2.0.0, pify@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
 
@@ -3368,6 +3383,12 @@ pkg-dir@^1.0.0:
   dependencies:
     find-up "^1.0.0"
 
+pkg-dir@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-2.0.0.tgz#f6d5d1109e19d63edf428e0bd57e12777615334b"
+  dependencies:
+    find-up "^2.1.0"
+
 platform@^1.3.3:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/platform/-/platform-1.3.4.tgz#6f0fb17edaaa48f21442b3a975c063130f1c3ebd"
@@ -3397,12 +3418,6 @@ prettify@^0.1.7:
     js-prettify "~1.4.0"
     lodash "~1.3.1"
 
-pretty-format@^19.0.0:
-  version "19.0.0"
-  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-19.0.0.tgz#56530d32acb98a3fa4851c4e2b9d37b420684c84"
-  dependencies:
-    ansi-styles "^3.0.0"
-
 pretty-ms@^0.2.1:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/pretty-ms/-/pretty-ms-0.2.2.tgz#da879a682ff33a37011046f13d627f67c73b84f6"
@@ -3717,10 +3732,20 @@ resolve-cwd@^1.0.0:
   dependencies:
     resolve-from "^2.0.0"
 
+resolve-cwd@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/resolve-cwd/-/resolve-cwd-2.0.0.tgz#00a9f7387556e27038eae232caa372a6a59b665a"
+  dependencies:
+    resolve-from "^3.0.0"
+
 resolve-from@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-2.0.0.tgz#9480ab20e94ffa1d9e80a804c7ea147611966b57"
 
+resolve-from@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-3.0.0.tgz#b22c7af7d9d6881bc8b6e653335eebcb0a188748"
+
 resolve@^1.1.7, resolve@^1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.3.2.tgz#1f0442c9e0cbb8136e87b9305f932f46c7f28235"
@@ -3748,7 +3773,7 @@ right-pad@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/right-pad/-/right-pad-1.0.1.tgz#8ca08c2cbb5b55e74dafa96bf7fd1a27d568c8d0"
 
-rimraf@2, rimraf@^2.3.3, rimraf@^2.4.4, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1:
+rimraf@2, rimraf@^2.3.3, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.1.tgz#c2338ec643df7a1b7fe5c54fa86f57428a55f33d"
   dependencies:
@@ -3866,10 +3891,6 @@ sigmund@~1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/sigmund/-/sigmund-1.0.1.tgz#3ff21f198cad2175f9f3b781853fd94d0d19b590"
 
-signal-exit@^2.0.0:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-2.1.2.tgz#375879b1f92ebc3b334480d038dc546a6d558564"
-
 signal-exit@^3.0.0, signal-exit@^3.0.1, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
@@ -3928,15 +3949,15 @@ spawn-command@0.0.2-1:
   version "0.0.2-1"
   resolved "https://registry.yarnpkg.com/spawn-command/-/spawn-command-0.0.2-1.tgz#62f5e9466981c1b796dc5929937e11c9c6921bd0"
 
-spawn-wrap@1.2.4:
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/spawn-wrap/-/spawn-wrap-1.2.4.tgz#920eb211a769c093eebfbd5b0e7a5d2e68ab2e40"
+spawn-wrap@^1.3.7:
+  version "1.3.8"
+  resolved "https://registry.yarnpkg.com/spawn-wrap/-/spawn-wrap-1.3.8.tgz#fa2a79b990cbb0bb0018dca6748d88367b19ec31"
   dependencies:
-    foreground-child "^1.3.3"
+    foreground-child "^1.5.6"
     mkdirp "^0.5.0"
     os-homedir "^1.0.1"
     rimraf "^2.3.3"
-    signal-exit "^2.0.0"
+    signal-exit "^3.0.2"
     which "^1.2.4"
 
 spdx-correct@~1.0.0:
@@ -3996,7 +4017,7 @@ stream-consume@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/stream-consume/-/stream-consume-0.1.0.tgz#a41ead1a6d6081ceb79f65b061901b6d8f3d1d0f"
 
-string-width@^1.0.1, string-width@^1.0.2:
+string-width@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
   dependencies:
@@ -4075,6 +4096,12 @@ supports-color@^3.1.2, supports-color@^3.2.3:
   dependencies:
     has-flag "^1.0.0"
 
+supports-color@^4.0.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.2.0.tgz#ad986dc7eb2315d009b4d77c8169c2231a684037"
+  dependencies:
+    has-flag "^2.0.0"
+
 symbol-observable@^0.2.2:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-0.2.4.tgz#95a83db26186d6af7e7a18dbd9760a2f86d08f40"
@@ -4110,9 +4137,9 @@ term-size@^0.1.0:
   dependencies:
     execa "^0.4.0"
 
-test-exclude@^4.0.0:
-  version "4.0.3"
-  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.0.3.tgz#86a13ce3effcc60e6c90403cf31a27a60ac6c4e7"
+test-exclude@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.1.1.tgz#4d84964b0966b0087ecc334a2ce002d3d9341e26"
   dependencies:
     arrify "^1.0.1"
     micromatch "^2.3.11"
@@ -4181,6 +4208,10 @@ trim-newlines@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-1.0.0.tgz#5887966bb582a4503a41eb524f7d35011815a613"
 
+trim-off-newlines@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/trim-off-newlines/-/trim-off-newlines-1.0.1.tgz#9f9ba9d9efa8764c387698bcbfeb2c848f11adb3"
+
 trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
@@ -4387,9 +4418,13 @@ walk@^2.3.9:
   dependencies:
     foreachasync "^3.0.0"
 
-which-module@^1.0.0:
+well-known-symbols@^1.0.0:
   version "1.0.0"
-  resolved "https://registry.yarnpkg.com/which-module/-/which-module-1.0.0.tgz#bba63ca861948994ff307736089e3b96026c2a4f"
+  resolved "https://registry.yarnpkg.com/well-known-symbols/-/well-known-symbols-1.0.0.tgz#73c78ae81a7726a8fa598e2880801c8b16225518"
+
+which-module@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
 
 which@^1.2.4, which@^1.2.8, which@^1.2.9:
   version "1.2.14"
@@ -4421,14 +4456,10 @@ word-wrap@^1.0.3:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.1.tgz#248f459b465d179a17bc407c854d3151d07e45d8"
 
-wordwrap@0.0.2:
+wordwrap@0.0.2, wordwrap@~0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
 
-wordwrap@~0.0.2:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
-
 wrap-ansi@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
@@ -4481,35 +4512,35 @@ yallist@^2.0.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
 
-yargs-parser@^4.0.2:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-4.2.1.tgz#29cceac0dc4f03c6c87b4a9f217dd18c9f74871c"
-  dependencies:
-    camelcase "^3.0.0"
-
 yargs-parser@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-5.0.0.tgz#275ecf0d7ffe05c77e64e7c86e4cd94bf0e1228a"
   dependencies:
     camelcase "^3.0.0"
 
-yargs@^7.0.2:
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-7.0.2.tgz#115b97df1321823e8b8648e8968c782521221f67"
+yargs-parser@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
   dependencies:
-    camelcase "^3.0.0"
+    camelcase "^4.1.0"
+
+yargs@^8.0.1:
+  version "8.0.2"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"
+  dependencies:
+    camelcase "^4.1.0"
     cliui "^3.2.0"
     decamelize "^1.1.1"
     get-caller-file "^1.0.1"
-    os-locale "^1.4.0"
-    read-pkg-up "^1.0.1"
+    os-locale "^2.0.0"
+    read-pkg-up "^2.0.0"
     require-directory "^2.1.1"
     require-main-filename "^1.0.1"
     set-blocking "^2.0.0"
-    string-width "^1.0.2"
-    which-module "^1.0.0"
+    string-width "^2.0.0"
+    which-module "^2.0.0"
     y18n "^3.2.1"
-    yargs-parser "^5.0.0"
+    yargs-parser "^7.0.0"
 
 yargs@~3.10.0:
   version "3.10.0"