chore(package): update ember-resolver to version 8.0.0

Closes #64

Author: greenkeeper[bot]

package.json

@@ -58,7 +58,7 @@
     "ember-export-application-global": "^2.0.0",
     "ember-load-initializers": "^2.0.0",
     "ember-maybe-import-regenerator": "^0.1.6",
-    "ember-resolver": "^5.0.1",
+    "ember-resolver": "^8.0.0",
     "ember-simple-auth": "^1.9.2",
     "ember-sinon": "^4.0.0",
     "ember-source": "^3.12.0",