Clean board on startup
Fix /f warp on Java 6 and 7

Covariance on ConcurrentHashMap#keySet() in Java 8 was to blame.
Revert reformat on Conf.java
Merge branch '1.6.x' of github.com:drtshock/Factions into kapocha

Conflicts:
	src/main/java/com/massivecraft/factions/cmd/CmdFWarp.java