Added data for offline processing
Removed obsolete data file
Split up html into partials and load them via initialiser
Updated Backbone Epoxy script
Authentication fixes

- Now caches authentication tokens to save relogging in on page reload
- Displays success message on login / logout
Removed (now) duplicate templates from index
Use local login if working in offline mode
Added an offline banner
Fixed issues with login/logout for both online and offline modes
Meetups page will now use local data if in offline mode
Use the configured userid for meetups page
Added functionality to select and display a prize winner
Load a list of previous winners and check against them