MacOSX/Framework: Support event collapsing, and save the media list thats own the media list aspect.

MacOSX/Framework: Use mediaListWithLibVLCMediaList instead of media*l*istWithLibVLCMediaList, to match the VLCMediaList class name cases.

MacOSX/Framework/VLCMediaListAspect.m: Implement -hierarchicalAspect and -flatAspect. (And add an internal @interface for VLCMediaListAspect (LibVLCBridging)).

MacOSX/Framework/VLCLibrary.m: libvlc type briding should be in the (VLCLibVLCBridging) category. No need to compute the applicationPath by now.(Patch by Enrique Osuna).