diff --git a/package.json b/package.json
index eccbe03..1829d0f 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "jasmine": "^3.3.0",
     "jasmine-core": "^3.3.0",
     "js-yaml": "^3.13.1",
-    "karma": "^3.1.1",
+    "karma": "^4.4.1",
     "karma-babel-preprocessor": "^7.0.0",
     "karma-chrome-launcher": "^2.2.0",
     "karma-fixture": "^0.2.6",
diff --git a/spec/karma/unit.js b/spec/karma/unit.js
index 87394a9..c97a404 100644
--- a/spec/karma/unit.js
+++ b/spec/karma/unit.js
@@ -29,7 +29,7 @@
     // list of files / patterns to load in the browser
     files: [
       'node_modules/babel-polyfill/dist/polyfill.js',
-      'node_modules/jasmine-jquery/lib/jasmine-jquery.js',
+      // 'node_modules/jasmine-jquery/lib/jasmine-jquery.js',
       'spec/javascripts/**/*Spec.js',
       'spec/javascripts/fixtures/*',
     ],
@@ -47,6 +47,9 @@
       'spec/javascripts/fixtures/*.json': ['json_fixtures'],
     },
 
+    webpack: require('../../config/webpack/test.js'),
+    
+
     // Preprocessor configuration
     jsonFixturesPreprocessor: {
       variableName: '__json__',
@@ -78,8 +81,15 @@
     // start these browsers
     // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
     browsers: [
-      'ChromeHeadless'
+      'ChromeHeadlessCustom'
     ],
+    // defining a custom browser to let this run in docker
+    customLaunchers: {
+      ChromeHeadlessCustom: {
+        base: 'ChromeHeadless',
+        flags: ['--no-sandbox']
+      }
+    },
 
     // Continuous Integration mode
     // if true, Karma captures browsers, runs the tests and exits
diff --git a/yarn.lock b/yarn.lock
index c7550f9..1c3626e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -440,11 +440,6 @@
     define-properties "^1.1.3"
     es-abstract "^1.17.0-next.0"
 
-array-slice@^0.2.3:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/array-slice/-/array-slice-0.2.3.tgz#dd3cfb80ed7973a75117cdac69b0b99ec86186f5"
-  integrity sha1-3Tz7gO15c6dRF82sabC5nshhhvU=
-
 array-union@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-union/-/array-union-1.0.2.tgz#9a34410e4f4e3da23dea375be5be70f24778ec39"
@@ -1376,13 +1371,6 @@
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
-braces@^0.1.2:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/braces/-/braces-0.1.5.tgz#c085711085291d8b75fdd74eab0f8597280711e6"
-  integrity sha1-wIVxEIUpHYt1/ddOqw+FlygHEeY=
-  dependencies:
-    expand-range "^0.1.0"
-
 braces@^1.8.2:
   version "1.8.5"
   resolved "https://registry.yarnpkg.com/braces/-/braces-1.8.5.tgz#ba77962e12dff969d6b76711e914b737857bf6a7"
@@ -1408,7 +1396,7 @@
     split-string "^3.0.2"
     to-regex "^3.0.1"
 
-braces@~3.0.2:
+braces@^3.0.2, braces@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/braces/-/braces-3.0.2.tgz#3454e1a462ee8d599e236df336cd9ea4f8afe107"
   integrity sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==
@@ -2007,7 +1995,7 @@
   resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
   integrity sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=
 
-chokidar@*:
+chokidar@*, chokidar@^3.0.0:
   version "3.3.1"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.3.1.tgz#c84e5b3d18d9a4d77558fef466b1bf16bbeb3450"
   integrity sha512-4QYCEWOcK3OJrxwvyyAOxFuhpvOVCYkr33LPfFNBjAD/w3sEzWsp2BUOkI4l9bHvWioAd0rc6NlHUOEaWkTeqg==
@@ -2038,7 +2026,7 @@
   optionalDependencies:
     fsevents "^1.0.0"
 
-chokidar@^2.0.2, chokidar@^2.0.3, chokidar@^2.1.8:
+chokidar@^2.0.2, chokidar@^2.1.8:
   version "2.1.8"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.1.8.tgz#804b3a7b6a99358c3c5c61e71d8728f041cff917"
   integrity sha512-ZmZUazfOzf0Nve7duiCKD23PFSCs4JPoYyccjUFF3aQkQadqBhfzhjkwBH2mNOG9cTBwhamM37EIsIkZw3nRgg==
@@ -2057,7 +2045,7 @@
   optionalDependencies:
     fsevents "^1.2.7"
 
-chownr@^1.0.1, chownr@^1.1.1:
+chownr@^1.0.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.3.tgz#42d837d5239688d55f303003a508230fa6727142"
   integrity sha512-i70fVHhmV3DtTl6nqvZOnIjbY0Pe4kAUjwHj8z0zAdgBtYrJyYwLKCCuRBQ5ppkyL0AkN7HKRnETdmdp1zqNXw==
@@ -2070,11 +2058,6 @@
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
-circular-json@^0.5.5:
-  version "0.5.9"
-  resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.5.9.tgz#932763ae88f4f7dead7a0d09c8a51a4743a53b1d"
-  integrity sha512-4ivwqHpIFJZBuhN3g/pEcdbnGUywkBblloGbkglyloVjjR3uT6tieI89MVOfbP2tHX5sgb01FuLgAOzebNlJNQ==
-
 clap@^1.0.9:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/clap/-/clap-1.2.3.tgz#4f36745b32008492557f46412d66d50cb99bce51"
@@ -2273,13 +2256,6 @@
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
   integrity sha1-FopHAXVran9RoSzgyXv6KMCE7WM=
 
-combine-lists@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/combine-lists/-/combine-lists-1.0.1.tgz#458c07e09e0d900fc28b70a3fec2dacd1d2cb7f6"
-  integrity sha1-RYwH4J4NkA/Ci3Cj/sLazR0st/Y=
-  dependencies:
-    lodash "^4.5.0"
-
 combine-source-map@^0.8.0, combine-source-map@~0.8.0:
   version "0.8.0"
   resolved "https://registry.yarnpkg.com/combine-source-map/-/combine-source-map-0.8.0.tgz#a58d0df042c186fcf822a8e8015f5450d2d79a8b"
@@ -2496,7 +2472,7 @@
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
   integrity sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=
 
-core-js@^2.2.0, core-js@^2.4.0, core-js@^2.5.0:
+core-js@^2.4.0, core-js@^2.5.0:
   version "2.6.11"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.11.tgz#38831469f9922bded8ee21c9dc46985e0399308c"
   integrity sha512-5wjnpaT/3dV+XB4borEsnAYQchn00XSgTAWKDkEqv+K8KevjbzmofK6hfJ9TZIlpj2N0xQpazy7PiRQiWHqzWg==
@@ -2865,10 +2841,10 @@
   dependencies:
     assert-plus "^1.0.0"
 
-date-format@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/date-format/-/date-format-1.2.0.tgz#615e828e233dd1ab9bb9ae0950e0ceccfa6ecad8"
-  integrity sha1-YV6CjiM90aubua4JUODOzPpuytg=
+date-format@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/date-format/-/date-format-2.1.0.tgz#31d5b5ea211cf5fd764cd38baf9d033df7e125cf"
+  integrity sha512-bYQuGLeFxhkxNOF3rcMtiZxvCBAquGzZm6oWA1oZ0g2THUzivaRhv8uOhdr19LmoobSOLoIAxeUK2RdbM8IFTA==
 
 debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
   version "2.6.9"
@@ -2940,11 +2916,6 @@
     object-keys "^1.1.1"
     regexp.prototype.flags "^1.2.0"
 
-deep-extend@^0.6.0:
-  version "0.6.0"
-  resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
-  integrity sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==
-
 deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
@@ -3055,11 +3026,6 @@
   dependencies:
     repeating "^2.0.0"
 
-detect-libc@^1.0.2:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
-  integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
-
 detect-node@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/detect-node/-/detect-node-2.0.4.tgz#014ee8f8f669c5c58023da64b8179c083a28c46c"
@@ -3670,15 +3636,6 @@
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
-expand-braces@^0.1.1:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/expand-braces/-/expand-braces-0.1.2.tgz#488b1d1d2451cb3d3a6b192cfc030f44c5855fea"
-  integrity sha1-SIsdHSRRyz06axks/AMPRMWFX+o=
-  dependencies:
-    array-slice "^0.2.3"
-    array-unique "^0.2.1"
-    braces "^0.1.2"
-
 expand-brackets@^0.1.4:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
@@ -3699,14 +3656,6 @@
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
-expand-range@^0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-0.1.1.tgz#4cb8eda0993ca56fa4f41fc42f3cbb4ccadff044"
-  integrity sha1-TLjtoJk8pW+k9B/ELzy7TMrf8EQ=
-  dependencies:
-    is-number "^0.1.1"
-    repeat-string "^0.2.2"
-
 expand-range@^1.8.1:
   version "1.8.2"
   resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-1.8.2.tgz#a299effd335fe2721ebae8e257ec79644fc85337"
@@ -4139,7 +4088,7 @@
     path-is-absolute "^1.0.0"
     rimraf "^2.2.8"
 
-fs-extra@^7.0.0:
+fs-extra@^7.0.0, fs-extra@^7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-7.0.1.tgz#4f189c44aa123b895f722804f55ea23eadc348e9"
   integrity sha512-YJDaCJZEnBmcbw13fvdAM9AwNOJwOzrE4pqMqBq5nFiEqXUqHwlK4B+3pUw6JNvfSPtX05xFHtYy/1ni01eGCw==
@@ -4148,13 +4097,6 @@
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
-fs-minipass@^1.2.5:
-  version "1.2.7"
-  resolved "https://registry.yarnpkg.com/fs-minipass/-/fs-minipass-1.2.7.tgz#ccff8570841e7fe4265693da88936c55aed7f7c7"
-  integrity sha512-GWSSJGFy4e9GUeCcbIkED+bgAoFyj7XF1mV8rma3QW4NIqX9Kyx79N/PF61H5udOV3aY1IaMLs6pGbH71nlCTA==
-  dependencies:
-    minipass "^2.6.0"
-
 fs-write-stream-atomic@^1.0.8:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/fs-write-stream-atomic/-/fs-write-stream-atomic-1.0.10.tgz#b47df53493ef911df75731e70a9ded0189db40c9"
@@ -4691,7 +4633,7 @@
   resolved "https://registry.yarnpkg.com/icon-windows/-/icon-windows-0.0.1.tgz#abe463f50f10d6dfc3bea2d5ffd4a1b350b57fcd"
   integrity sha1-q+Rj9Q8Q1t/DvqLV/9Shs1C1f80=
 
-iconv-lite@0.4.24, iconv-lite@^0.4.24, iconv-lite@^0.4.4:
+iconv-lite@0.4.24, iconv-lite@^0.4.24:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
   integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
@@ -4720,13 +4662,6 @@
   resolved "https://registry.yarnpkg.com/iferr/-/iferr-0.1.5.tgz#c60eed69e6d8fdb6b3104a1fcbca1c192dc5b501"
   integrity sha1-xg7taebY/bazEEofy8ocGS3FtQE=
 
-ignore-walk@^3.0.1:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.3.tgz#017e2447184bfeade7c238e4aefdd1e8f95b1e37"
-  integrity sha512-m7o6xuOaT1aqheYHKf8W6J5pYH85ZI9w077erOzLje3JsB1gkafkAhHHY19dqjulgIZHFm32Cp5uNZgcQqdJKw==
-  dependencies:
-    minimatch "^3.0.4"
-
 ignore@^4.0.6:
   version "4.0.6"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-4.0.6.tgz#750e3db5862087b4737ebac8207ffd1ef27b25fc"
@@ -4820,11 +4755,6 @@
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
   integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
 
-ini@~1.3.0:
-  version "1.3.5"
-  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
-  integrity sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==
-
 inline-source-map@~0.6.0:
   version "0.6.2"
   resolved "https://registry.yarnpkg.com/inline-source-map/-/inline-source-map-0.6.2.tgz#f9393471c18a79d1724f863fa38b586370ade2a5"
@@ -5113,11 +5043,6 @@
   dependencies:
     is-extglob "^2.1.1"
 
-is-number@^0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/is-number/-/is-number-0.1.1.tgz#69a7af116963d47206ec9bd9b48a14216f1e3806"
-  integrity sha1-aaevEWlj1HIG7JvZtIoUIW8eOAY=
-
 is-number@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
@@ -5531,28 +5456,26 @@
     source-map "^0.5.6"
     webpack-dev-middleware "^2.0.6"
 
-karma@^3.1.1:
-  version "3.1.4"
-  resolved "https://registry.yarnpkg.com/karma/-/karma-3.1.4.tgz#3890ca9722b10d1d14b726e1335931455788499e"
-  integrity sha512-31Vo8Qr5glN+dZEVIpnPCxEGleqE0EY6CtC2X9TagRV3rRQ3SNrvfhddICkJgUK3AgqpeKSZau03QumTGhGoSw==
+karma@^4.4.1:
+  version "4.4.1"
+  resolved "https://registry.yarnpkg.com/karma/-/karma-4.4.1.tgz#6d9aaab037a31136dc074002620ee11e8c2e32ab"
+  integrity sha512-L5SIaXEYqzrh6b1wqYC42tNsFMx2PWuxky84pK9coK09MvmL7mxii3G3bZBh/0rvD27lqDd0le9jyhzvwif73A==
   dependencies:
     bluebird "^3.3.0"
     body-parser "^1.16.1"
-    chokidar "^2.0.3"
+    braces "^3.0.2"
+    chokidar "^3.0.0"
     colors "^1.1.0"
-    combine-lists "^1.0.0"
     connect "^3.6.0"
-    core-js "^2.2.0"
     di "^0.0.1"
     dom-serialize "^2.2.0"
-    expand-braces "^0.1.1"
     flatted "^2.0.0"
     glob "^7.1.1"
     graceful-fs "^4.1.2"
     http-proxy "^1.13.0"
     isbinaryfile "^3.0.0"
-    lodash "^4.17.5"
-    log4js "^3.0.0"
+    lodash "^4.17.14"
+    log4js "^4.0.0"
     mime "^2.3.1"
     minimatch "^3.0.2"
     optimist "^0.6.1"
@@ -5780,7 +5703,7 @@
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-"lodash@>=3.5 <5", lodash@^4.0.0, lodash@^4.17.11, lodash@^4.17.12, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.5.0, lodash@~4.17.10:
+"lodash@>=3.5 <5", lodash@^4.0.0, lodash@^4.17.11, lodash@^4.17.12, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.4, lodash@~4.17.10:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
   integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
@@ -5792,16 +5715,16 @@
   dependencies:
     chalk "^2.0.1"
 
-log4js@^3.0.0:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/log4js/-/log4js-3.0.6.tgz#e6caced94967eeeb9ce399f9f8682a4b2b28c8ff"
-  integrity sha512-ezXZk6oPJCWL483zj64pNkMuY/NcRX5MPiB0zE6tjZM137aeusrOnW1ecxgF9cmwMWkBMhjteQxBPoZBh9FDxQ==
+log4js@^4.0.0:
+  version "4.5.1"
+  resolved "https://registry.yarnpkg.com/log4js/-/log4js-4.5.1.tgz#e543625e97d9e6f3e6e7c9fc196dd6ab2cae30b5"
+  integrity sha512-EEEgFcE9bLgaYUKuozyFfytQM2wDHtXn4tAN41pkaxpNjAykv11GVdeI4tHtmPWW4Xrgh9R/2d7XYghDVjbKKw==
   dependencies:
-    circular-json "^0.5.5"
-    date-format "^1.2.0"
-    debug "^3.1.0"
-    rfdc "^1.1.2"
-    streamroller "0.7.0"
+    date-format "^2.0.0"
+    debug "^4.1.1"
+    flatted "^2.0.0"
+    rfdc "^1.1.4"
+    streamroller "^1.0.6"
 
 loglevel@^1.6.4:
   version "1.6.6"
@@ -6083,21 +6006,6 @@
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
   integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
 
-minipass@^2.6.0, minipass@^2.8.6, minipass@^2.9.0:
-  version "2.9.0"
-  resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.9.0.tgz#e713762e7d3e32fed803115cf93e04bca9fcc9a6"
-  integrity sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==
-  dependencies:
-    safe-buffer "^5.1.2"
-    yallist "^3.0.0"
-
-minizlib@^1.2.1:
-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.3.3.tgz#2290de96818a34c29551c8a8d301216bd65a861d"
-  integrity sha512-6ZYMOEnmVsdCeTJVE0W9ZD+pVnE8h9Hma/iOwwRDsdQoePpoX56/8B6z3P9VNwppJuBKNRuFDRNRqRWexT9G9Q==
-  dependencies:
-    minipass "^2.9.0"
-
 mississippi@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/mississippi/-/mississippi-2.0.0.tgz#3442a508fafc28500486feea99409676e4ee5a6f"
@@ -6274,15 +6182,6 @@
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
   integrity sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=
 
-needle@^2.2.1:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/needle/-/needle-2.4.0.tgz#6833e74975c444642590e15a750288c5f939b57c"
-  integrity sha512-4Hnwzr3mi5L97hMYeNl8wRW/Onhy4nUKR/lVemJ8gJedxxUyBLm9kkrDColJvoSfwi0jCNhD+xCdOtiGDQiRZg==
-  dependencies:
-    debug "^3.2.6"
-    iconv-lite "^0.4.4"
-    sax "^1.2.4"
-
 negotiator@0.6.2:
   version "0.6.2"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
@@ -6375,22 +6274,6 @@
     util "^0.11.0"
     vm-browserify "^1.0.1"
 
-node-pre-gyp@*:
-  version "0.14.0"
-  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.14.0.tgz#9a0596533b877289bcad4e143982ca3d904ddc83"
-  integrity sha512-+CvDC7ZttU/sSt9rFjix/P05iS43qHCOOGzcr3Ry99bXG7VX953+vFyEuph/tfqoYu8dttBkE86JSKBO2OzcxA==
-  dependencies:
-    detect-libc "^1.0.2"
-    mkdirp "^0.5.1"
-    needle "^2.2.1"
-    nopt "^4.0.1"
-    npm-packlist "^1.1.6"
-    npmlog "^4.0.2"
-    rc "^1.2.7"
-    rimraf "^2.6.1"
-    semver "^5.3.0"
-    tar "^4.4.2"
-
 node-releases@^1.1.42:
   version "1.1.42"
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.42.tgz#a999f6a62f8746981f6da90627a8d2fc090bbad7"
@@ -6428,14 +6311,6 @@
   dependencies:
     abbrev "1"
 
-nopt@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
-  integrity sha1-0NRoWv1UFRk8jHUFYC0NF81kR00=
-  dependencies:
-    abbrev "1"
-    osenv "^0.1.4"
-
 nopt@~1.0.10:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-1.0.10.tgz#6ddd21bd2a31417b92727dd585f8a6f37608ebee"
@@ -6485,26 +6360,6 @@
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-3.3.0.tgz#b2e1c4dc4f7c6d57743df733a4f5978d18650559"
   integrity sha512-U+JJi7duF1o+u2pynbp2zXDW2/PADgC30f0GsHZtRh+HOcXHnw137TrNlyxxRvWW5fjKd3bcLHPxofWuCjaeZg==
 
-npm-bundled@^1.0.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/npm-bundled/-/npm-bundled-1.1.1.tgz#1edd570865a94cdb1bc8220775e29466c9fb234b"
-  integrity sha512-gqkfgGePhTpAEgUsGEgcq1rqPXA+tv/aVBlgEzfXwA1yiUJF7xtEt3CtVwOjNYQOVknDk0F20w58Fnm3EtG0fA==
-  dependencies:
-    npm-normalize-package-bin "^1.0.1"
-
-npm-normalize-package-bin@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/npm-normalize-package-bin/-/npm-normalize-package-bin-1.0.1.tgz#6e79a41f23fd235c0623218228da7d9c23b8f6e2"
-  integrity sha512-EPfafl6JL5/rU+ot6P3gRSCpPDW5VmIzX959Ob1+ySFUuuYHWHekXpwdUZcKP5C+DS4GEtdJluwBjnsNDl+fSA==
-
-npm-packlist@^1.1.6:
-  version "1.4.7"
-  resolved "https://registry.yarnpkg.com/npm-packlist/-/npm-packlist-1.4.7.tgz#9e954365a06b80b18111ea900945af4f88ed4848"
-  integrity sha512-vAj7dIkp5NhieaGZxBJB8fF4R0078rqsmhJcAfXZ6O7JJhjhPK96n5Ry1oZcfLXgfun0GWTZPOxaEyqv8GBykQ==
-  dependencies:
-    ignore-walk "^3.0.1"
-    npm-bundled "^1.0.1"
-
 npm-run-path@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
@@ -6512,7 +6367,7 @@
   dependencies:
     path-key "^2.0.0"
 
-"npmlog@0 || 1 || 2 || 3 || 4", npmlog@^4.0.0, npmlog@^4.0.2:
+"npmlog@0 || 1 || 2 || 3 || 4", npmlog@^4.0.0:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
   integrity sha512-2uUqazuKlTaSI/dC8AzicUck7+IrEaOnN/e0jd3Xtt1KcGpwx30v50mL7oPyr/h9bL3E4aZccVwpwP+5W9Vjkg==
@@ -6776,7 +6631,7 @@
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
   integrity sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=
 
-osenv@0, osenv@^0.1.4:
+osenv@0:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.5.tgz#85cdfafaeb28e8677f416e287592b5f3f49ea410"
   integrity sha512-0CWcCECdMVc2Rw3U5w9ZjqX6ga6ubk1xDVKxtBQPK7wis/0F2r9T6k4ydGYhecl7YUBxBVxhL5oisPsNxAPe2g==
@@ -8159,6 +8014,14 @@
   resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.1.1.tgz#60e5a5fd64a7f8bfa4d2ab2ed6fdf4c85bad154e"
   integrity sha512-w7fLxIRCRT7U8Qu53jQnJyPkYZIaR4n5151KMfcJlO/A9397Wxb1amJvROTK6TOnp7PfoAmg/qXiNHI+08jRfA==
 
+rails-erb-loader@^5.5.2:
+  version "5.5.2"
+  resolved "https://registry.yarnpkg.com/rails-erb-loader/-/rails-erb-loader-5.5.2.tgz#db3fa8ac89600f09d179a1a70a2ca18c592576ea"
+  integrity sha512-cjQH9SuSvRPhnWkvjmmAW/S4AFVDfAtYnQO4XpKJ8xpRdZayT73iXoE+IPc3VzN03noZXhVmyvsCvKvHj4LY6w==
+  dependencies:
+    loader-utils "^1.1.0"
+    lodash.defaults "^4.2.0"
+
 random-bytes@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/random-bytes/-/random-bytes-1.0.0.tgz#4f68a1dc0ae58bd3fb95848c30324db75d64360b"
@@ -8203,16 +8066,6 @@
     iconv-lite "0.4.24"
     unpipe "1.0.0"
 
-rc@^1.2.7:
-  version "1.2.8"
-  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
-  integrity sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==
-  dependencies:
-    deep-extend "^0.6.0"
-    ini "~1.3.0"
-    minimist "^1.2.0"
-    strip-json-comments "~2.0.1"
-
 read-cache@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/read-cache/-/read-cache-1.0.0.tgz#e664ef31161166c9751cdbe8dbcf86b5fb58f774"
@@ -8261,7 +8114,7 @@
     normalize-package-data "^2.3.2"
     path-type "^2.0.0"
 
-"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.6, readable-stream@~2.3.6:
+"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.3, readable-stream@^2.3.6, readable-stream@~2.3.6:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   integrity sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==
@@ -8445,11 +8298,6 @@
   resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.3.tgz#782e0d825c0c5a3bb39731f84efee6b742e6b1ce"
   integrity sha512-ahGq0ZnV5m5XtZLMb+vP76kcAM5nkLqk0lpqAuojSKGgQtn4eRi4ZZGm2olo2zKFH+sMsWaqOCW1dqAnOru72g==
 
-repeat-string@^0.2.2:
-  version "0.2.2"
-  resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-0.2.2.tgz#c7a8d3236068362059a7e4651fc6884e8b1fb4ae"
-  integrity sha1-x6jTI2BoNiBZp+RlH8aITosftK4=
-
 repeat-string@^1.5.2, repeat-string@^1.6.1:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
@@ -8576,7 +8424,7 @@
   resolved "https://registry.yarnpkg.com/retry/-/retry-0.12.0.tgz#1b42a6266a21f07421d1b0b54b7dc167b01c013b"
   integrity sha1-G0KmJmoh8HQh0bC1S33BZ7AcATs=
 
-rfdc@^1.1.2:
+rfdc@^1.1.4:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/rfdc/-/rfdc-1.1.4.tgz#ba72cc1367a0ccd9cf81a870b3b58bd3ad07f8c2"
   integrity sha512-5C9HXdzK8EAqN7JDif30jqsBzavB7wLpaubisuQIGHWf2gUXSpzy6ArX/+Da8RjFpagWsCn+pIgxTMAmKw9Zug==
@@ -8818,7 +8666,7 @@
     neo-async "^2.5.0"
     pify "^3.0.0"
 
-sax@^1.2.4, sax@~1.2.1, sax@~1.2.4:
+sax@~1.2.1, sax@~1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
@@ -9348,15 +9196,16 @@
     inherits "^2.0.1"
     readable-stream "^2.0.2"
 
-streamroller@0.7.0:
-  version "0.7.0"
-  resolved "https://registry.yarnpkg.com/streamroller/-/streamroller-0.7.0.tgz#a1d1b7cf83d39afb0d63049a5acbf93493bdf64b"
-  integrity sha512-WREzfy0r0zUqp3lGO096wRuUp7ho1X6uo/7DJfTlEi0Iv/4gT7YHqXDjKC2ioVGBZtE8QzsQD9nx1nIuoZ57jQ==
+streamroller@^1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/streamroller/-/streamroller-1.0.6.tgz#8167d8496ed9f19f05ee4b158d9611321b8cacd9"
+  integrity sha512-3QC47Mhv3/aZNFpDDVO44qQb9gwB9QggMEE0sQmkTAwBVYdBRWISdsywlkfm5II1Q5y/pmrHflti/IgmIzdDBg==
   dependencies:
-    date-format "^1.2.0"
-    debug "^3.1.0"
-    mkdirp "^0.5.1"
-    readable-stream "^2.3.0"
+    async "^2.6.2"
+    date-format "^2.0.0"
+    debug "^3.2.6"
+    fs-extra "^7.0.1"
+    lodash "^4.17.14"
 
 strict-uri-encode@^1.0.0:
   version "1.1.0"
@@ -9476,7 +9325,7 @@
   dependencies:
     get-stdin "^4.0.1"
 
-strip-json-comments@2.0.1, strip-json-comments@^2.0.1, strip-json-comments@~2.0.1:
+strip-json-comments@2.0.1, strip-json-comments@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
   integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
@@ -9624,19 +9473,6 @@
     fstream "^1.0.12"
     inherits "2"
 
-tar@^4.4.2:
-  version "4.4.13"
-  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.13.tgz#43b364bc52888d555298637b10d60790254ab525"
-  integrity sha512-w2VwSrBoHa5BsSyH+KxEqeQBAllHhccyMFVHtGtdMpF4W7IRWfZjFiQceJPChOeTsSDVUpER2T8FA93pr0L+QA==
-  dependencies:
-    chownr "^1.1.1"
-    fs-minipass "^1.2.5"
-    minipass "^2.8.6"
-    minizlib "^1.2.1"
-    mkdirp "^0.5.0"
-    safe-buffer "^5.1.2"
-    yallist "^3.0.3"
-
 text-table@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
@@ -10485,11 +10321,6 @@
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
   integrity sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=
 
-yallist@^3.0.0, yallist@^3.0.3:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
-  integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
-
 yargs-parser@13.1.1, yargs-parser@^13.1.1:
   version "13.1.1"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.1.tgz#d26058532aa06d365fe091f6a1fc06b2f7e5eca0"