Fixed some case-sensitivity issues, and some text issues. Added protection for dispensers, and furnaces. Added an auto-naming algorithm, if you don't enter a name on the 2nd line it will automatically generate one for you. Thanks to @gv1222.
1.2.5
Fixed the description, added a small tutorial, if you type /rp. Added a tiny bit of multi-group support. It may break if you're using PEX, but just use 1.2.0 then. Fixed a small null pointer exception. Made the sign change color and read 'Error' if you ever get an error.
1.3.0
Added support for Permissions 3, and other non-SuperPermissions systems.
Added a group-wise maximum area limit, it's only for PEX currently.
Add maxregionsize: 'value' to your permissions.yml. (options: maxregionsize: '300').
2 new commands:
/rp list - Lists info about all regions you own.
/rp limit - Lists your current area used, out of the maximum area for your group.
1.3.1
Fixed list permissions.
1.3.2
Administrators can now use /list on other players.
1.4.0
New commands, "/rp tutorial", "/rp near".
Updated code, fixes on minor speed issues.
Fixed the default description. (/rp).
1.4.1
A minor spacing fix
A minor node fix.
1.4.2
A new configuration option, 'height-start'.
A minor syntax fix in /rp.
1.5.0
Flags! Type /rp flag (flag) to toggle, /rp flag for a list, and /rp flag info to show current flag data for the current region.
1.6.0
Major re-write of region saving code.
Removed debug messages.
Fixes in iteration and lag fixing.
Multiple-worlds won't take more ram.
1.6.1
Animal flag works, a minor error removed.
1.6.2
Possible fix to the 'null pointer exception'.
Added a /rp worlds debug command, if you get an exception, type that and screenshot it as soon as possible.
1.7.0
New indexing system, should be much faster now.
Added a wand and /rp define, worldguard-esque admin creation, you can create very large regions for players. [/rp define [owner name] [region name].
Added a simple API hook.
1.7.1
Fixed a bug involving maximum regions you could place.