Fixed basic test cases for ERRAI-610

Switching locales manually now causes full traversal and re-translation
of the DOM.
Added new test and locale changing method for testing
Added preconditions to tests regarding whether attached or not to DOM
Add new test case for App Scoped unattached template
Modified unattached tests

Want to check that elements are translated after being reattached.
Fixed test case

Was failing because of extra locale that was added
Added new test for template child of template