Removing deprecated getMVConfiguration() method because I suspect it could be related to some issues.
Updated to AllPay 13.
Fixed the GenericBank imports
Now mocking plugin.getLogger() in the tests.

Fixes the test issues with AllPay.
Update checkstyle.
Style fixes.
Now using apache commons for file operations.  Hopefully we will get more success with deleting and copying stuff.  May fix Inventories test failures.
"Not MV's fault"-Message for getChunkGenerator()

If a plugin, for whatever weird reason, gets loaded and enabled correctly,
but just getDefaultWorldGenerator() throws, people might think it's MV's
fault. Not anymore.