start work on tournaments - refs #1

also includes minor schema file updates
Merge branch 'master' into tournaments
progress - not production ready

add ability to start tournament
add stats to db
add schema update file
fix some pluralization errors (human -> humen)
update todo
update gitignore
Merge branch 'master' into tournaments
progress
Merge remote-tracking branch 'origin/tournaments' into tournaments
update TrueSkill Plugin to be leaner and faster
progress
progress
finish tournaments
whitespace edits
konami
sort tournaments and matches in reverse chronological order (newest first)

closes #7
Merge branch 'master' into player-avatars

Conflicts:
	Controller/AppController.php
	View/Home/index.ctp
	webroot/js/index.js