(gtk)  #5271 'once we start shutting down the application, stop updating the Action states': more safeguards

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13956 f4695dd4-2c0a-0410-b89c-da849a56a58e
(libT) #5274 '"copy magnet link to clipboard" doesn't include webseeds': fixed.


git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13959 f4695dd4-2c0a-0410-b89c-da849a56a58e