Tokens are now being sent with each gp request.

Also fixed a test that was mocking the token response from the server incorrectly.
Tokens are now sent with at least gp requests. Not sure about other services.
Merge branch 'master' of https://github.com/agrc/agrc.ijit into token-requests

* 'master' of https://github.com/agrc/agrc.ijit:
  Added sign-in-success event.
  Allow login register to be hidden on load.
  Updated reference to stubmodule submodule.

Conflicts:
	widgets/LoginRegister.js
	widgets/_LoginRegisterSignInPane.js
Token expire and user object now stored in widget.
Updated stubmodule to fix an async bug.
More progress and refactoring related to #10.

Also, fixes some tests in SpecLoginRegister.js that were not cleaning up after themselves.

Still need to figure out what to do about expired tokens.
Moved LoginRegister widget and dependencies to `authentication` folder.
Merge pull request #13 from agrc/token-requests

After Login, tokens are appended to each esri.request.