New BussTUC plugin and several utils and fixes.

Add BussTUCPlugin with support for BusTUC by IDI. Add jSoup-based website-retriever. Add utils for general purpose use. Clean some junk. Fix settings file not being generated if not existing.
Method chaining is really cool, and I like that you implemented it :D

It needs to be documented properly on the wiki though, and preferrably link the wiki from the Javadoc in the beginning of the class. ;-)