chore(package): update ember-resolver to version 7.0.0

Closes #41

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
     "ember-load-initializers": "^1.1.0",
     "ember-maybe-import-regenerator": "^0.1.6",
     "ember-qunit": "^3.4.1",
-    "ember-resolver": "^5.0.1",
+    "ember-resolver": "^7.0.0",
     "ember-source": "~3.6.0",
     "ember-source-channel-url": "^1.1.0",
     "ember-try": "^1.0.0",