Color backup teams blue instead of black

fixes #6

Signed-off-by: Jan Losinski <losinski@wh2.tu-dresden.de>
Sort backup teams to the end of the team list

closes #6

Signed-off-by: Jan Losinski <losinski@wh2.tu-dresden.de>
Merge pull request #7 from janLo/master

Better visual classification for backup and unconfirmed teams in admin list