updated general explanation of token auth
WIP: OAuth example
added some docs for the OAuth example
cleanup
implemented OAuth helpers

this includes some bigger restrucuting
cleanup
fixed name of mock
fixed core tests
make sure mocks are always fresh
added missing tests
better test names
simplified ApplicationMock
test for Ember.SimpleAuth.externalLoginCallback
fixed assertion messages
cleanup
better test wording
cleanup
fixed JSHINT problem
added missing test
better var name