diff --git a/package.json b/package.json
index 1ba764d1..2b9c0734 100644
--- a/package.json
+++ b/package.json
@@ -114,7 +114,7 @@
     "rimraf": "^2.6.1",
     "rxjs": "^5.5.9",
     "semver": "^5.4.1",
-    "underscore": "^1.8.3",
+    "underscore": "^1.12.1",
     "underscore.inflections": "^0.2.1"
   },
   "devDependencies": {}
diff --git a/yarn.lock b/yarn.lock
index 229c9b0b..a79263d5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,28 +2,6 @@
 # yarn lockfile v1
 
 
-"@mean-expert/loopback-component-realtime@^1.0.0-beta.8":
-  version "1.0.0-rc.5"
-  resolved "https://registry.yarnpkg.com/@mean-expert/loopback-component-realtime/-/loopback-component-realtime-1.0.0-rc.5.tgz#e12b17a52dae157aa2c92b1f43cc791c754ce4b9"
-  dependencies:
-    async "^2.0.1"
-    chalk "^1.1.3"
-    loopback-context "^1.0.0"
-    socket.io "^1.4.8"
-    socket.io-client "^1.4.8"
-    socketio-auth "0.0.5"
-
-accepts@1.3.3:
-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.3.tgz#c3ca7434938648c3e0d9c1e328dd68b622c284ca"
-  dependencies:
-    mime-types "~2.1.11"
-    negotiator "0.6.1"
-
-after@0.8.2:
-  version "0.8.2"
-  resolved "https://registry.yarnpkg.com/after/-/after-0.8.2.tgz#fedb394f9f0e02aa9768e702bda23b505fae7e1f"
-
 ansi-regex@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
@@ -32,61 +10,20 @@ ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
-arraybuffer.slice@0.0.6:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.6.tgz#f33b2159f0532a3f3107a272c0ccfbd1ad2979ca"
-
-async-listener@^0.6.0:
-  version "0.6.5"
-  resolved "https://registry.yarnpkg.com/async-listener/-/async-listener-0.6.5.tgz#2c899d49a5e8a2dea10b9473915b4149206a1d68"
-  dependencies:
-    semver "^5.3.0"
-    shimmer "^1.1.0"
-
-async@^2.0.1:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.4.0.tgz#4990200f18ea5b837c2cc4f8c031a6985c385611"
-  dependencies:
-    lodash "^4.14.0"
-
-backo2@1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/backo2/-/backo2-1.0.2.tgz#31ab1ac8b129363463e35b3ebb69f4dfcfba7947"
-
-balanced-match@^0.4.1:
-  version "0.4.2"
-  resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-0.4.2.tgz#cb3f3e3c732dc0f01ee70b403f302e61d7709838"
-
-base64-arraybuffer@0.1.5:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz#73926771923b5a19747ad666aa5cd4bf9c6e9ce8"
-
-base64id@1.0.0:
+balanced-match@^1.0.0:
   version "1.0.0"
-  resolved "https://registry.yarnpkg.com/base64id/-/base64id-1.0.0.tgz#47688cb99bb6804f0e06d3e763b1c32e57d8e6b6"
-
-better-assert@~1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/better-assert/-/better-assert-1.0.2.tgz#40866b9e1b9e0b55b481894311e68faffaebc522"
-  dependencies:
-    callsite "1.0.0"
-
-blob@0.0.4:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.4.tgz#bcf13052ca54463f30f9fc7e95b9a47630a94921"
+  resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
+  integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
-brace-expansion@^1.0.0:
-  version "1.1.7"
-  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.7.tgz#3effc3c50e000531fb720eaff80f0ae8ef23cf59"
+brace-expansion@^1.1.7:
+  version "1.1.11"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
+  integrity sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==
   dependencies:
-    balanced-match "^0.4.1"
+    balanced-match "^1.0.0"
     concat-map "0.0.1"
 
-callsite@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/callsite/-/callsite-1.0.0.tgz#280398e5d664bd74038b6f0905153e6e8af1bc20"
-
-chalk@1.1.3, chalk@^1.1.3:
+chalk@1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -96,98 +33,14 @@ chalk@1.1.3, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-component-bind@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1"
-
-component-emitter@1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.1.2.tgz#296594f2753daa63996d2af08d15a95116c9aec3"
-
-component-emitter@1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
-
-component-inherit@0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
-
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
 
-continuation-local-storage@^3.1.7:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/continuation-local-storage/-/continuation-local-storage-3.2.0.tgz#e19fc36b597090a5d4e4a3b2ea3ebc5e29694a24"
-  dependencies:
-    async-listener "^0.6.0"
-    emitter-listener "^1.0.1"
-
-cookie@0.3.1:
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
-
-debug@2.2.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
-  dependencies:
-    ms "0.7.1"
-
-debug@2.3.3, debug@^2.1.3:
-  version "2.3.3"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.3.3.tgz#40c453e67e6e13c901ddec317af8986cda9eff8c"
-  dependencies:
-    ms "0.7.2"
-
 ejs@1.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-1.0.0.tgz#c9c60a48a46ee452fb32a71c317b95e5aa1fcb3d"
 
-emitter-listener@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/emitter-listener/-/emitter-listener-1.0.1.tgz#b2499ea6e58230a52c268d5df261eecd9f10fe97"
-  dependencies:
-    shimmer "1.0.0"
-
-engine.io-client@1.8.3:
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-1.8.3.tgz#1798ed93451246453d4c6f635d7a201fe940d5ab"
-  dependencies:
-    component-emitter "1.2.1"
-    component-inherit "0.0.3"
-    debug "2.3.3"
-    engine.io-parser "1.3.2"
-    has-cors "1.1.0"
-    indexof "0.0.1"
-    parsejson "0.0.3"
-    parseqs "0.0.5"
-    parseuri "0.0.5"
-    ws "1.1.2"
-    xmlhttprequest-ssl "1.5.3"
-    yeast "0.1.2"
-
-engine.io-parser@1.3.2:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-1.3.2.tgz#937b079f0007d0893ec56d46cb220b8cb435220a"
-  dependencies:
-    after "0.8.2"
-    arraybuffer.slice "0.0.6"
-    base64-arraybuffer "0.1.5"
-    blob "0.0.4"
-    has-binary "0.1.7"
-    wtf-8 "1.0.0"
-
-engine.io@1.8.3:
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-1.8.3.tgz#8de7f97895d20d39b85f88eeee777b2bd42b13d4"
-  dependencies:
-    accepts "1.3.3"
-    base64id "1.0.0"
-    cookie "0.3.1"
-    debug "2.3.3"
-    engine.io-parser "1.3.2"
-    ws "1.1.2"
-
 escape-string-regexp@^1.0.2:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
@@ -202,14 +55,15 @@ fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
 
-glob@^7.0.5:
-  version "7.1.1"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
+glob@^7.1.3:
+  version "7.1.6"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
+  integrity sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==
   dependencies:
     fs.realpath "^1.0.0"
     inflight "^1.0.4"
     inherits "2"
-    minimatch "^3.0.2"
+    minimatch "^3.0.4"
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
@@ -219,20 +73,6 @@ has-ansi@^2.0.0:
   dependencies:
     ansi-regex "^2.0.0"
 
-has-binary@0.1.7:
-  version "0.1.7"
-  resolved "https://registry.yarnpkg.com/has-binary/-/has-binary-0.1.7.tgz#68e61eb16210c9545a0a5cce06a873912fe1e68c"
-  dependencies:
-    isarray "0.0.1"
-
-has-cors@1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/has-cors/-/has-cors-1.1.0.tgz#5e474793f7ea9843d1bb99c23eef49ff126fff39"
-
-indexof@0.0.1:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
-
 inflight@^1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
@@ -244,43 +84,12 @@ inherits@2:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
 
-isarray@0.0.1:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
-
-json3@3.3.2:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
-
-lodash@^3.8.0:
-  version "3.10.1"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
-
-lodash@^4.14.0:
-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
-
-loopback-context@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/loopback-context/-/loopback-context-1.0.0.tgz#30c9b2315ceab03ec901a73942e7614cd93e9548"
+minimatch@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
+  integrity sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==
   dependencies:
-    continuation-local-storage "^3.1.7"
-
-mime-db@~1.27.0:
-  version "1.27.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.27.0.tgz#820f572296bbd20ec25ed55e5b5de869e5436eb1"
-
-mime-types@~2.1.11:
-  version "2.1.15"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.15.tgz#a4ebf5064094569237b8cf70046776d09fc92aed"
-  dependencies:
-    mime-db "~1.27.0"
-
-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"
+    brace-expansion "^1.1.7"
 
 minimist@0.0.8, minimist@~0.0.1:
   version "0.0.8"
@@ -292,26 +101,6 @@ mkdirp@0.5.1:
   dependencies:
     minimist "0.0.8"
 
-ms@0.7.1:
-  version "0.7.1"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
-
-ms@0.7.2:
-  version "0.7.2"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
-
-negotiator@0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
-
-object-assign@4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.0.tgz#7a3b3d0e98063d43f4c03f2e8ae6cd51a86883a0"
-
-object-component@0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/object-component/-/object-component-0.0.3.tgz#f0c69aa50efc95b866c186f400a33769cb2f1291"
-
 once@^1.3.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
@@ -325,104 +114,28 @@ optimist@0.6.1:
     minimist "~0.0.1"
     wordwrap "~0.0.2"
 
-options@>=0.0.5:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/options/-/options-0.0.6.tgz#ec22d312806bb53e731773e7cdaefcf1c643128f"
-
-parsejson@0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/parsejson/-/parsejson-0.0.3.tgz#ab7e3759f209ece99437973f7d0f1f64ae0e64ab"
-  dependencies:
-    better-assert "~1.0.0"
-
-parseqs@0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/parseqs/-/parseqs-0.0.5.tgz#d5208a3738e46766e291ba2ea173684921a8b89d"
-  dependencies:
-    better-assert "~1.0.0"
-
-parseuri@0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/parseuri/-/parseuri-0.0.5.tgz#80204a50d4dbb779bfdc6ebe2778d90e4bce320a"
-  dependencies:
-    better-assert "~1.0.0"
-
 path-is-absolute@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
-rimraf@2.5.3:
-  version "2.5.3"
-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.5.3.tgz#6e5efdda4aa2f03417f6b2a574aec29f4b652705"
+rimraf@^2.6.1:
+  version "2.7.1"
+  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.7.1.tgz#35797f13a7fdadc566142c29d4f07ccad483e3ec"
+  integrity sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==
   dependencies:
-    glob "^7.0.5"
+    glob "^7.1.3"
 
-semver@4.3.2:
-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-4.3.2.tgz#c7a07158a80bedd052355b770d82d6640f803be7"
-
-semver@^5.3.0:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
-
-shimmer@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/shimmer/-/shimmer-1.0.0.tgz#49c2d71c678360b802be18b278382d1cbb805c39"
-
-shimmer@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/shimmer/-/shimmer-1.1.0.tgz#97d7377137ffbbab425522e429fe0aa89a488b35"
-
-socket.io-adapter@0.5.0:
-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-0.5.0.tgz#cb6d4bb8bec81e1078b99677f9ced0046066bb8b"
+rxjs@^5.5.9:
+  version "5.5.12"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.5.12.tgz#6fa61b8a77c3d793dbaf270bee2f43f652d741cc"
+  integrity sha512-xx2itnL5sBbqeeiVgNPVuQQ1nC8Jp2WfNJhXWHmElW9YmrpS9UVnNzhP3EH3HFqexO5Tlp8GhYY+WEcqcVMvGw==
   dependencies:
-    debug "2.3.3"
-    socket.io-parser "2.3.1"
+    symbol-observable "1.0.1"
 
-socket.io-client@1.7.3, socket.io-client@^1.4.8:
-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-1.7.3.tgz#b30e86aa10d5ef3546601c09cde4765e381da377"
-  dependencies:
-    backo2 "1.0.2"
-    component-bind "1.0.0"
-    component-emitter "1.2.1"
-    debug "2.3.3"
-    engine.io-client "1.8.3"
-    has-binary "0.1.7"
-    indexof "0.0.1"
-    object-component "0.0.3"
-    parseuri "0.0.5"
-    socket.io-parser "2.3.1"
-    to-array "0.1.4"
-
-socket.io-parser@2.3.1:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-2.3.1.tgz#dd532025103ce429697326befd64005fcfe5b4a0"
-  dependencies:
-    component-emitter "1.1.2"
-    debug "2.2.0"
-    isarray "0.0.1"
-    json3 "3.3.2"
-
-socket.io@^1.4.8:
-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-1.7.3.tgz#b8af9caba00949e568e369f1327ea9be9ea2461b"
-  dependencies:
-    debug "2.3.3"
-    engine.io "1.8.3"
-    has-binary "0.1.7"
-    object-assign "4.1.0"
-    socket.io-adapter "0.5.0"
-    socket.io-client "1.7.3"
-    socket.io-parser "2.3.1"
-
-socketio-auth@0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/socketio-auth/-/socketio-auth-0.0.5.tgz#0529c858cbc54c37acf0198d900e441553e832aa"
-  dependencies:
-    debug "^2.1.3"
-    lodash "^3.8.0"
+semver@^5.4.1:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
+  integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==
 
 sprintf-js@^1.0.3:
   version "1.0.3"
@@ -438,13 +151,10 @@ supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
 
-to-array@0.1.4:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/to-array/-/to-array-0.1.4.tgz#17e6c11f73dd4f3d74cda7a4ff3238e9ad9bf890"
-
-ultron@1.0.x:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.0.2.tgz#ace116ab557cd197386a4e88f4685378c8b2e4fa"
+symbol-observable@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.1.tgz#8340fc4702c3122df5d22288f88283f513d3fdd4"
+  integrity sha1-g0D8RwLDEi310iKI+IKD9RPT/dQ=
 
 underscore.inflections@^0.2.1:
   version "0.2.1"
@@ -460,10 +170,15 @@ underscore.string@>=2.0.0:
     sprintf-js "^1.0.3"
     util-deprecate "^1.0.2"
 
-"underscore@>= 1.4 < 2", underscore@>=1.0, underscore@^1.8.3:
+"underscore@>= 1.4 < 2", underscore@>=1.0:
   version "1.8.3"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.8.3.tgz#4f3fb53b106e6097fcf9cb4109f2a5e9bdfa5022"
 
+underscore@^1.12.1:
+  version "1.12.1"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.12.1.tgz#7bb8cc9b3d397e201cf8553336d262544ead829e"
+  integrity sha512-hEQt0+ZLDVUMhebKxL4x1BTtDY7bavVofhZ9KZ4aI26X9SRaE+Y3m83XUL1UP2jn8ynjndwCCpEHdUG+9pP1Tw==
+
 util-deprecate@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
@@ -475,22 +190,3 @@ wordwrap@~0.0.2:
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
-
-ws@1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-1.1.2.tgz#8a244fa052401e08c9886cf44a85189e1fd4067f"
-  dependencies:
-    options ">=0.0.5"
-    ultron "1.0.x"
-
-wtf-8@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/wtf-8/-/wtf-8-1.0.0.tgz#392d8ba2d0f1c34d1ee2d630f15d0efb68e1048a"
-
-xmlhttprequest-ssl@1.5.3:
-  version "1.5.3"
-  resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz#185a888c04eca46c3e4070d99f7b49de3528992d"
-
-yeast@0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"