Added just some docs and a sanityCheck against the difficult to find bugs of the location classes. So if memory usage/load time goes through the roof, try logging 'pool' messages.

{
	'opengl': ['core/video/opengl/', 'core/gui/base/opengl/'],
	'zip': ['core/vfs/zip/'],
	'script-python': ['swigwrappers/python'],
	'script-lua': ['swigwrappers/lua'],
}