Administration menu

0.93

- You no longer need any other permission node than "adminmenu.*"

- Added a section in the menu where you can control everyones permission.

- Prepared a bit for a future feature.

- Should be a bit more user friendly.

- The menu only shows the sections you have access to.

- Fixed the bug where /am and /menu did not work properly.

0.9

- Added shortcuts to commands. /am, /menu

0.8

- First release.