MCHawk v0.1.1

This release is mostly bug fixes and minor improvements.
Added /whois command.
Added temporary world permissions.

If you want to add a new group, edit groups.txt.

Format of groups.txt:

<action>:<object>:[color:]<comma-separated list>

Example of groups.txt:

group:server:&a:permissions,essentials.server
group:admin:&c:permissions,essentials.world,essentials.ban,essentials.kick,essentials.cuboid,essentials.groups,essentials.whois
group:moderator:&e:essentials.kick
group:builder:&b:essentials.cuboid
group:guest:&7:
name:soandso:moderator,builder

When the user "Soandso" joins he will be in the groups moderator and builder. Moderator is the main group because it came first in the user's group list, so the name will show up as yellow in chat (color code &e)

The username must be lowercase in the groups file. There are currently no commands to edit this in-game, but /group reload will will reload the groups.txt file and grant players their group permissions if necessary.