fix for url retain and cancel on share
Merge branch 'master' of https://github.com/proletariatgames/NMEX-Facebook

Conflicts:
	ndll/Mac/libfacebook.a
	ndll/iPhone/libfacebook.iphoneos-v7.a
	ndll/iPhone/libfacebook.iphoneos.a
	ndll/iPhone/libfacebook.iphonesim.a