Add groupmasking support for "propForRay" queries.

Touched classes: MOAIProp, MOAIPartition, MOAIPartitionCell, and
MOAIPartitionLevel.
Merge branch 'feature-prop_groupmask' into nanocell-development
Add queryAABB function to MOAIBox2DWorld.
Add MOAIBox2DWorld:queryAABBList function.

- perform a batch of AABB queries (given AABBs in an array/table).
Remove debug output from MOAIBox2DWorld::_queryAABB
Add b2TestOverlap to AABB test (MOAIBox2DWorld) for more accurate collisions.
Fix some AABB query issues.
Remove debug output from MOAIBox2DWorld
Merge branch 'feature-b2world_queries' into nanocell-development