python/deskbar-handler/tracker-module.py: some even more defensive programming for add_all_actions
python/deskbar-handler/tracker-module.py: some even more defensive programming for add_all_actions

svn path=/trunk/; revision=1056

hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker,hoheinzollern/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker