v2.6 release

Update to release build 2.5

v2.5-SNAPSHOT:

    - Make the saving of data Threadsafe.

v2.4: - Fix an NPE and superperms not updating correctly when adding a

timed permission directly to a player (reported by BleuBleue).

v2.3:

    - Added timed permissions. You can also add negated timed
permissions to punish bad players who need a timeout.
        eg. /mangaddp default test.*|1d2h15m
            /mangaddp owner -test.perm|20m

v2.2:

	- Update for Spigot 1.16.1
	- Update all command code for Spigot/Bukkits command handler.
	- Implement full Tab Completion on all commands.