Added container protection so players outside your group can't use doors, chests, buckets etc. within your groups' claims.

Added the same protections for Safe and Neutral zones.

Cleaned up the /g map. Now has slightly different grid pattern for the chunk you're facing for better distinction.

Added group colors! Allows group leaders to change their group's color in chat with /g setcolor (COLOR). OP's can also change any group's name color with /g setgroupcolor (Group) (COLOR).