Bracket

Progress in tournament functionality: bracket and group stage pairing
- Models for Tournament, TournPair, TournUser, TournDeck
- instance methods in Tournament: initiate_bracket, initiate_groups(int)
       *tests for these methods in tournament spec
- basic views for testing tournament creation and bracket viewing
Align the elements of a hash literal if they span more than one line.<br>Line is too long. [90/80]