Upgrade to ember-cli 1.13

(Note/TODO: there is currently a deprecation warning about the Brocfile)

Author: Godhuda

package.json

@@ -37,7 +37,7 @@
     "broccoli-string-replace": "~0.0.2",
     "broccoli-uglify-js": "~0.1.3",
     "chalk": "~0.4.0",
-    "ember-cli": "^0.2.7",
+    "ember-cli": "^1.13.0",
     "ember-cli-release": "^0.2.2",
     "ember-cli-sauce": "^1.3.0",
     "emberjs-build": "0.2.1",
@@ -47,4 +47,4 @@
     "qunit": "^0.7.2",
     "rsvp": "~3.0.6"
   }
-}
+}