Added some crap that i'm going to clean up (take out again) and recommit
with
Updated the plugin so that horses are not left behidn when their riders
are killed. In addition, mobs riding other mobs don't delete other mobs
beneath them when they die. Cleaned up the spawnEvent class, and deleted
spawnEvent class.
Added new inventory possibilities for Doubles as well as implemented a
squad spawning method for Predefined types