Tests - fix router issue caused by the loading route

Apparently the loading route try to render all application. I just commenting the code to not have any routing problem.
Perhaps should be works better to render the loading template to its outlet into module or sub-module route directly instead, but I don't have make any test.

I shift down the ember and ember-data to "standard" version. The application looks works normally so not needed the potentially more unstable canary-build and beta.

see commits for others minors changes and fixes