Added Game object and collection

-Created methods on matchup to automatically create the correct number of games when best_of changes
-Added basic methods to start and end a game
Rednamed Groups to GroupStages to avoid confusion with franchise groups
Added Time Picker vendor files
Made an Event's stream and title editable via the match menu
Added moment js scripts and jquery ui style files
Merge pull request #2 from K4orta/match-menu-improvements

Match menu improvements