Implement Eucalyptus login form handler.
Unit tests for Euca login form.  GUI-251
Initial progress on AWS authentication.  GUI-188
Wire up AWS login and add unit tests for login/auth.  GUI-188
Move tests/ folder up one level so coverage ignores it.
More unit tests for auth to expand coverage, which is at 75% now.
Display error msg when access key and/or secret key are invalid for AWS login.
Use consistent session identifier for credentials.  GUI-188
Merge pull request #1 from eucalyptus/GUI-188_GUI-251

Establish login with Euca and AWS.  GUI-188, GUI-251