BRAKING CHANGE: Rewrote permission value bundles completely.

This commit introduces a completely redesigned handling of
permission-values that is a lot more flexible and much more
object-oriented than previous attempts: 

- Limit Bundles: The complete evaluation of limits is now stored within
the limit-bundle. The multiworld-approach has been moved into abstract
classes to be reusable.

- Fee Bundles: The fee bundle includes a connection with the current
economy link to simplify the whole process. The economy-link has been
split into a ManagedLink that includes player-messages and
bypass-permissions, and the actual link to the (external) economy
provider. The permission to disobey all fees has changed to
'mywarp.economy.disobey'.

- Time Bundles: Warp warmups and cooldowns have been moved into one
object, the time bundle. This also changes the configuration and
permissions for timers: player need to hold the
'mywarp.timer.[IDENTIFIER]' permission, the bypass permission has been
changed to 'mywarp.timer.disobey', 'mywarp.timer.disboey.dmgabort' and
'my warp.disobey.moveabort'. The management of TimerActions has been
split into several classes and should be pretty strait-forward.

The configuration itself will be updated later-one to properly adapt
this new style.