Added button for changing rules.
- Icons taken from "Web0.2ama" icon pack by chrfb: http://chrfb.deviantart.com/art/Web0-2ama-165156124
- CSS taken from http://stackoverflow.com/questions/7577308/.

Other changes:
- Fixed issue with restarting if SUDDEN_DEATH is disabled.

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>