gameData.xml Updated/More Updates to Object/Actor

-Moved all recent changes in code to the master gameData.xml file
including new attribues on the actor model tag.
-More sorting out Object/Actor in terms of velocity.  Trying to finalize
the min/max velocity stuff - the bane of my existence (sometimes it's
the dumbest things).  Also preventing low velocity in an attempt to
resolve Box2D sticky issues - but it isn't 100% resolved.  better.  I
think.