macosx: fix packaging Safari and Firefox plugin.
macosx: fix packaging Safari and Firefox plugin.

siuying/VLCKit,waterskier2007/VLCKit,hpsoar/VLCKit,kamcord/VLCKit,waterskier2007/VLCKit,larrytin/VLCKit,i386/vlckit,larrytin/VLCKit,programming086/VLCKit,hpsoar/VLCKit,waterskier2007/VLCKit,CollabraMusic/VLCKit,simon1984/test,simon1984/test,CollabraMusic/VLCKit,programming086/VLCKit,strukturag/VLCKit,kamcord/VLCKit,strukturag/VLCKit,siuying/VLCKit,simon1984/test,brion/VLCKit,kamcord/VLCKit,siuying/VLCKit,CollabraMusic/VLCKit