Added location to addPrinter method. Some cleanup.
Merge branch 'master' of https://github.com/simoncadman/CUPS-Cloud-Print
Refactor auth.py to allow for interaction outside of CLI.
Introduce setup GUI and CupsHelper class
Merge branch 'master' of https://github.com/jacobmarble/CUPS-Cloud-Print into jacobmarble-master
Merge branch 'jacobmarble-master'
Test fixes
pep8 fixes