Update Notes:

Changed Path class into GridPath
	-collection of GridCoords
Added World Path
	-collection of WorldCoords
Changed Return Value for PathFinder from GridPath to WorldPath
Updated all references to Path class to appropriate type GridPath/WorldPath

Optimization Notes:
Changed foreach cycle condition to use local variable reference of PathValues array instead of calling getLength(0) each iteration
Merge branch 'master' of https://github.com/toecto/opocraft