adds persistent growl error msg if fixture fails.
refactored app config background syncing to make sure memory copy gets updated too.
refactored conversion of results to promise using $q.when()
tweak start up navigation flow.
adds last updated date to app-config
locale msg for last updated
app config last updated UI
Merge branch 'refactor/load-fixture-into-memory-and-synchronous-factory-getters' into refactor/in-memory-models-and-synchronous-getters

Conflicts:
	app/scripts/services/app-config-service.js
updated app config service