chore(package): update ember-resolver to version 6.0.0

Closes #82

Author: greenkeeper[bot]

package.json

@@ -52,7 +52,7 @@
     "ember-light-table": "^1.8.4",
     "ember-load-initializers": "^1.0.0",
     "ember-one-way-controls": "^2.0.0",
-    "ember-resolver": "^4.1.0",
+    "ember-resolver": "^6.0.0",
     "ember-responsive": "^2.0.2",
     "ember-simple-auth": "^1.2.1",
     "ember-sinon": "^0.7.0",