Added moving spinners

> Added the ability to have spinners move back and forth in an area
>> Add an object to a "spinners" layer, snap to grid so they are
centered
>> add custom properties
>>> "d" the number of tiles the spinner should move
>>> "s" the speed of the spinner
>>> "vx" the horizontal direction [0,1] (no idea if anything other than
1 works)
>>> "vy" the vertical direction [0,1] (no idea if anything other than 1
works)
>>> "ox" offsets the spinner a number of tiles in the X direction
>>> "oy" offsets the spinner a number of tiles in the Y direction
Removed Java 7 things

> Couldn't figure out how to fix my build path to work with 1.7 so I
removed switching on strings to be compliant with 1.6