Updated locks to work with next embedded mutex.
Added /colors command to toggle coloring.
Changed /color to /theme and made mono theme default.
Added comments and /shutdown command.
Resolved merge conflict.
Fixed formatting and made color default.
Added /shutdown and /theme to help text.
Merge pull request #41 from empathetic-alligator/master

Added /color command and fixed lock bug.
Merge remote-tracking branch 'upstream/master' into lint-fix

Conflicts:
	client.go
	colors.go
Removed type from declaration

(it will be inferred from the right-hand side)
Changed BannedPk to BannedPK, removed bannedIP