Add watch file support
Imported Upstream version 0.2.3
Merge tag 'upstream/0.2.3' into squeeze

Upstream version 0.2.3
Fix build dependencies
Update standard version
Add copyright file
Switch build-system to pybuild
Add package description
Fix package description
Add X-Python field in control file
Clean control file
Update Depends macro in control file
Fix Maintainer in control file