Unknown provider: routerHelperProvider <- routerHelper

When I try this out-of-the-box, it runs okay, but this test fails:

```
[1APhantomJS 1.9.7 (Mac OS X 0.0.0) layout sidebar "before each" hook FAILED
Error: [$injector:unpr] Unknown provider: routerHelperProvider <- routerHelper
http://errors.angularjs.org/1.3.16/$injector/unpr?p0=routerHelperProvider%20%3C-%20routerHelper
at ...project-path.../bower_components/angular/angular.js:4031
at getService (...project-path.../bower_components/angular/angular.js:4178)
at ...project-path.../bower_components/angular/angular.js:4036
at getService (...project-path.../bower_components/angular/angular.js:4178)
at ...project-path.../bower_components/bardjs/dist/bard.js:301
at forEach (...project-path.../bower_components/angular/angular.js:326)
at bardInject (...project-path.../bower_components/bardjs/dist/bard.js:315)
at ...project-path.../src/client/app/layout/sidebar.controller.spec.js:13
```

If I comment out references to routerHelper in src/client/app/layout/sidebar.controller.spec.js, the tests pass fine. Is this method deprecated?

Start by running the failing layout sidebar test and inspect src/client/app/layout/sidebar.controller.spec.js, especially its routerHelper references. Trace how routerHelper is provided in the application and test setup; done means the test no longer reports Unknown provider without commenting out those references.

Written by the indexing model from the issue text.