[PATCH] Fix warning of deprecated MainLoop

Hi, Today when I ran this program I found something noisy in the terminal: [rpmaker@fab Desktop]$ firewall-config firewall-config.py:813: PyGIDeprecationWarning: MainLoop is deprecated; use GLib.MainLoop instead self.mainloop = GObject.MainLoop() So I send this patch to you to solve this problem. Please take a look at the attachment area. Thank you. Yours sincerely, Christopher Meng Always playing in Fedora Project http://cicku.me