Add message for login pending
Add Inital sign in functionality to the worker
moved login function to dedicated worker message handler
Refactoring the code using ports in the worker.
Add sinon.js to repo
Handle null events, and check for correct ready states in xhr callbacks
Mock the worker unit tests using sinon to create standalone tests
Whitespace only change to remove commented out mozSocial if statement
Fix jshint issues
Handle the server rejecting a login in the worker
Remove now unnecessary Social API installation button for unit tests as it is no longer required
Remove duplicate sinon.js file that was mistakenly added to production location rather than test.
Fix review comments
Merge pull request #70 from Standard8/worker-login-basic

Add login functionality to the worker