diff --git a/package-lock.json b/package-lock.json
index 1bf1c38..08c688d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -772,7 +772,7 @@
         },
         "chalk": {
             "version": "1.1.3",
-            "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+            "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
             "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
             "dev": true,
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@@ -1959,7 +1959,8 @@
                 "ansi-regex": {
                     "version": "2.1.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "aproba": {
                     "version": "1.2.0",
@@ -2374,7 +2375,8 @@
                 "safe-buffer": {
                     "version": "5.1.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "safer-buffer": {
                     "version": "2.1.2",
@@ -2430,6 +2432,7 @@
                     "version": "3.0.1",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "ansi-regex": "^2.0.0"
                     }
@@ -2473,12 +2476,14 @@
                 "wrappy": {
                     "version": "1.0.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "yallist": {
                     "version": "3.0.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 }
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@@ -2879,7 +2884,7 @@
                 },
                 "kind-of": {
                     "version": "1.1.0",
-                    "resolved": "http://registry.npmjs.org/kind-of/-/kind-of-1.1.0.tgz",
+                    "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-1.1.0.tgz",
                     "integrity": "sha1-FAo9LUGjbS78+pN3tiwk+ElaXEQ=",
                     "dev": true
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@@ -3234,7 +3239,7 @@
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             "version": "0.1.6",
-            "resolved": "http://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
+            "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
             "integrity": "sha1-qeEss66Nh2cn7u84Q/igiXtcmNY=",
             "dev": true,
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@@ -3284,7 +3289,7 @@
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         "is-data-descriptor": {
             "version": "0.1.4",
-            "resolved": "http://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
+            "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
             "integrity": "sha1-C17mSDiOLIYCgueT8YVv7D8wG1Y=",
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@@ -3677,7 +3682,7 @@
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                 "yargs": {
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-                    "resolved": "http://registry.npmjs.org/yargs/-/yargs-6.6.0.tgz",
+                    "resolved": "https://registry.npmjs.org/yargs/-/yargs-6.6.0.tgz",
                     "integrity": "sha1-eC7CHvQDNF+DCoCMo9UTr1YGUgg=",
                     "dev": true,
                     "requires": {
@@ -4124,7 +4129,7 @@
                 },
                 "semver": {
                     "version": "5.3.0",
-                    "resolved": "http://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
+                    "resolved": "https://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
                     "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8=",
                     "dev": true
                 }
@@ -4617,9 +4622,9 @@
             "dev": true
         },
         "path-parse": {
-            "version": "1.0.6",
-            "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
-            "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
+            "version": "1.0.7",
+            "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+            "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
             "dev": true
         },
         "path-root": {
@@ -5284,7 +5289,7 @@
             "dependencies": {
                 "source-map": {
                     "version": "0.4.4",
-                    "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
+                    "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
                     "integrity": "sha1-66T12pwNyZneaAMti092FzZSA2s=",
                     "dev": true,
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@@ -5563,7 +5568,7 @@
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                     "version": "3.2.1",
-                    "resolved": "http://registry.npmjs.org/engine.io-client/-/engine.io-client-3.2.1.tgz",
+                    "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.2.1.tgz",
                     "integrity": "sha512-y5AbkytWeM4jQr7m/koQLc5AxpRKC1hEVUb/s1FUAWEJq5AzJJ4NLvzuKPuxtDi5Mq755WuDvZ6Iv2rXj4PTzw==",
                     "dev": true,
                     "requires": {
@@ -5604,7 +5609,7 @@
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                 "socket.io-parser": {
                     "version": "3.2.0",
-                    "resolved": "http://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.2.0.tgz",
+                    "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.2.0.tgz",
                     "integrity": "sha512-FYiBx7rc/KORMJlgsXysflWx/RIvtqZbyGLlHZvjfmPTPeuD/I8MaW7cfFrj5tRltICJdgwflhfZ3NVVbVLFQA==",
                     "dev": true,
                     "requires": {
@@ -5840,7 +5845,7 @@
         },
         "strip-ansi": {
             "version": "3.0.1",
-            "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+            "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
             "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
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@@ -5867,7 +5872,7 @@
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         "supports-color": {
             "version": "2.0.0",
-            "resolved": "http://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
+            "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
             "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
             "dev": true
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@@ -6464,7 +6469,7 @@
         },
         "yargs": {
             "version": "6.4.0",
-            "resolved": "http://registry.npmjs.org/yargs/-/yargs-6.4.0.tgz",
+            "resolved": "https://registry.npmjs.org/yargs/-/yargs-6.4.0.tgz",
             "integrity": "sha1-gW4ahm1VmMzzTlWW3c4i2S2kkNQ=",
             "dev": true,
             "requires": {
@@ -6486,7 +6491,7 @@
         },
         "yargs-parser": {
             "version": "4.2.1",
-            "resolved": "http://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
+            "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
             "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
             "dev": true,
             "requires": {