devel/pybugz: switch to my github and bump version

My fork brings several features that improve your command line
bugzilla experience:

• Improves bug printing to make it as close to WebUI as possible.
• Adds -Q that allows to quote comment(s) when replying to a bug.
• Allows to download attachment(s) of a bug with some filtering.

Note on DISTVERSION: pybugz internally names itself as 0.14, but
there were no release.

Approved by: linimon