diff --git a/ember-app/yarn.lock b/ember-app/yarn.lock
index f65988c..0ce5e8d 100644
--- a/ember-app/yarn.lock
+++ b/ember-app/yarn.lock
@@ -2448,7 +2448,7 @@ debug@2.6.9, debug@^2.1.0, debug@^2.1.1, debug@^2.1.2, debug@^2.1.3, debug@^2.2.
   dependencies:
     ms "2.0.0"
 
-debug@^3.0.1, debug@^3.1.0, debug@^3.2.6:
+debug@^3.0.1, debug@^3.1.0:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
   dependencies:
@@ -2692,7 +2692,7 @@ ember-cli-babel@6.12.0:
     ember-cli-version-checker "^2.1.0"
     semver "^5.4.1"
 
-ember-cli-babel@^6.0.0, ember-cli-babel@^6.0.0-beta.4, ember-cli-babel@^6.0.0-beta.7, ember-cli-babel@^6.11.0, ember-cli-babel@^6.12.0, ember-cli-babel@^6.14.1, ember-cli-babel@^6.16.0, ember-cli-babel@^6.3.0, ember-cli-babel@^6.6.0, ember-cli-babel@^6.8.1, ember-cli-babel@^6.8.2, ember-cli-babel@^6.9.0:
+ember-cli-babel@^6.0.0, ember-cli-babel@^6.0.0-beta.4, ember-cli-babel@^6.0.0-beta.7, ember-cli-babel@^6.11.0, ember-cli-babel@^6.12.0, ember-cli-babel@^6.16.0, ember-cli-babel@^6.3.0, ember-cli-babel@^6.6.0, ember-cli-babel@^6.8.1, ember-cli-babel@^6.8.2, ember-cli-babel@^6.9.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/ember-cli-babel/-/ember-cli-babel-6.18.0.tgz#3f6435fd275172edeff2b634ee7b29ce74318957"
   dependencies:
@@ -2753,7 +2753,7 @@ ember-cli-htmlbars-inline-precompile@^1.0.0:
     heimdalljs-logger "^0.1.9"
     silent-error "^1.1.0"
 
-ember-cli-htmlbars@^2.0.1, ember-cli-htmlbars@^2.0.3:
+ember-cli-htmlbars@^2.0.1:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/ember-cli-htmlbars/-/ember-cli-htmlbars-2.0.5.tgz#b5a105429a6bce4f7c9c97b667e3b8926e31397f"
   dependencies:
@@ -3201,28 +3201,6 @@ ember-source@~3.1.0:
     jquery "^3.3.1"
     resolve "^1.5.0"
 
-ember-websockets@^7.2.0:
-  version "7.2.0"
-  resolved "https://registry.yarnpkg.com/ember-websockets/-/ember-websockets-7.2.0.tgz#23ac8dfecd85d4eb22d1ff500f799bb97bc5c7d3"
-  dependencies:
-    broccoli-funnel "^2.0.1"
-    broccoli-merge-trees "^3.0.0"
-    ember-cli-babel "^6.14.1"
-    fastboot-transform "^0.1.2"
-    glob "^7.1.2"
-    mock-socket "^7.1.0"
-    morgan "^1.9.0"
-    socket.io-client "^2.1.1"
-    urijs "^1.19.0"
-
-ember-welcome-page@^3.0.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/ember-welcome-page/-/ember-welcome-page-3.2.0.tgz#fe9903dbbaccfb4a2a05f42c716b7d07470f2d78"
-  dependencies:
-    broccoli-funnel "^1.0.1"
-    ember-cli-babel "^6.6.0"
-    ember-cli-htmlbars "^2.0.3"
-
 emojis-list@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
@@ -3483,9 +3461,9 @@ event-emitter@~0.3.5:
     d "1"
     es5-ext "~0.10.14"
 
-eventemitter3@^3.0.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.0.tgz#090b4d6cdbd645ed10bf750d4b5407942d7ba163"
+eventemitter3@^4.0.0:
+  version "4.0.7"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.7.tgz#2de9b68f6528d5644ef5c59526a1b4a07306169f"
 
 events-to-array@^1.0.1:
   version "1.1.2"
@@ -3845,10 +3823,8 @@ flush-write-stream@^1.0.0:
     readable-stream "^2.3.6"
 
 follow-redirects@^1.0.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.7.0.tgz#489ebc198dc0e7f64167bd23b03c4c19b5784c76"
-  dependencies:
-    debug "^3.2.6"
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.13.0.tgz#b42e8d93a2a7eea5ed88633676d6597bc8e384db"
 
 for-in@^1.0.2:
   version "1.0.2"
@@ -4307,10 +4283,10 @@ http-parser-js@>=0.4.0:
   resolved "https://registry.yarnpkg.com/http-parser-js/-/http-parser-js-0.5.0.tgz#d65edbede84349d0dc30320815a15d39cc3cbbd8"
 
 http-proxy@^1.13.1, http-proxy@^1.9.0:
-  version "1.17.0"
-  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.17.0.tgz#7ad38494658f84605e2f6db4436df410f4e5be9a"
+  version "1.18.1"
+  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.18.1.tgz#401541f0534884bbf95260334e72f88ee3976549"
   dependencies:
-    eventemitter3 "^3.0.0"
+    eventemitter3 "^4.0.0"
     follow-redirects "^1.0.0"
     requires-port "^1.0.0"
 
@@ -5531,11 +5507,7 @@ mktemp@~0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/mktemp/-/mktemp-0.4.0.tgz#6d0515611c8a8c84e484aa2000129b98e981ff0b"
 
-mock-socket@^7.1.0:
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/mock-socket/-/mock-socket-7.1.0.tgz#482ecccafb0f0e86b8905ba2aa57c1fe73ba262d"
-
-morgan@^1.8.1, morgan@^1.9.0:
+morgan@^1.8.1:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/morgan/-/morgan-1.9.1.tgz#0a8d16734a1d9afbc824b99df87e738e58e2da59"
   dependencies:
@@ -6901,7 +6873,7 @@ socket.io-adapter@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-1.1.1.tgz#2a805e8a14d6372124dd9159ad4502f8cb07f06b"
 
-socket.io-client@2.2.0, socket.io-client@^2.1.1:
+socket.io-client@2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-2.2.0.tgz#84e73ee3c43d5020ccc1a258faeeb9aec2723af7"
   dependencies:
@@ -7583,10 +7555,6 @@ uri-js@^4.2.2:
   dependencies:
     punycode "^2.1.0"
 
-urijs@^1.19.0:
-  version "1.19.1"
-  resolved "https://registry.yarnpkg.com/urijs/-/urijs-1.19.1.tgz#5b0ff530c0cbde8386f6342235ba5ca6e995d25a"
-
 urix@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"