deps: ember@2.3.0

no issue
- predominantly a bugfix and performance related release
- https://github.com/emberjs/ember.js/releases/tag/v2.3.0
- http://emberjs.com/blog/2016/01/15/ember-2-3-released.html
- some deprecations are introduced around the use of injected `container` objects, these are from `ember-simple-auth` and should be rectified with an up-coming release

core/client/bower.json

@@ -4,7 +4,7 @@
     "blueimp-md5": "1.1.0",
     "codemirror": "5.2.0",
     "devicejs": "0.2.7",
-    "ember": "2.2.1",
+    "ember": "2.3.0",
     "ember-cli-shims": "0.1.0",
     "ember-cli-test-loader": "0.2.1",
     "ember-mocha": "0.8.8",

core/client/package.json

@@ -41,7 +41,6 @@
     "ember-data-filter": "1.13.0",
     "ember-disable-proxy-controllers": "1.0.1",
     "ember-export-application-global": "1.0.5",
-    "ember-hash-helper-polyfill": "0.1.0",
     "ember-myth": "0.1.1",
     "ember-resolver": "2.0.3",
     "ember-route-action-helper": "0.2.0",