make the join tables not have models
Merge branch 'clean'

Conflicts:
	app/controllers/tournaments_controller.rb
use had_and_belongs_to_many
fix the tournament_{player,host}s join tables
Merge branch 'clean'
fix the has_and_belongs_to_many relations
Merge branch 'master' of github.com:LukeShu/leaguer

Conflicts:
	config/routes.rb