Fixup various pylint problems in Gecko.py.
Fixup various pylint problems in Gecko.py.

svn path=/trunk/; revision=3294

pvagner/orca,chrys87/orca-beep,h4ck3rm1k3/orca-sonar,GNOME/orca,GNOME/orca,pvagner/orca,pvagner/orca,GNOME/orca,chrys87/orca-beep,chrys87/orca-beep,chrys87/orca-beep,h4ck3rm1k3/orca-sonar,GNOME/orca,h4ck3rm1k3/orca-sonar,pvagner/orca