Fix post sort order
Explicitly sort posts in client
Clean up files
Fix Chrome Extension BlueFletch images and confirm new APIs hooked up and working. Also added popup to tell user to set username if not set in the extension.
Update session management method to use mongo instead of using cookies, and to not have to pass the username to each web service (just use the session).
Remove cookie info from config file
Add connect-mongo and remove socketio.  Increment version to 2.0.