Util Package update.

Expanded LocationHelper and RandomHelper.
IMulti got a few tweaks as well. Most of all the declaration of the enum StructureType has been moved to the RelativeStructure-class.
Added managers, modified events.
A whole new breed of Handlers. Don't mind the cranky conductor sitting in the corner, he is preparing himself to be swinging his baton twenty times a second.
Events got an update as well to reflect the new plan for Rift-Interactions.
Working on the items and blocks.