Menubar deletion causes AttributeError in Window.py

[icb410]

A user on AskUbuntu reported this problem: http://askubuntu.com/questions/186700/ubuntu-quickly-how-to-recover-from-deleting-menubar

He deleted the menubar and the program wouldn't run. The problem came from the base Window.py which tried to add Launchpad integration into the help menu.

On line 63, adding AttributeError to the except line allows it to fail nicely and continue the program.

[Christoffer Holmstedt (christoffer-holmstedt)]

I can confirm that I experienced this bug today and the suggested fix of adding "AttributeError" to line 63 sorted it. I'm not sure how this impacts the software later on so I can't for sure say that it's a proper solution, but it works.