Reworked AppWizard's generated version files.

Renamed __version__.py to version.py; no longer create a dict
containing appVersion and appRevision, just set __version__.
This falls in line with recent Dabo changes and removes
the Subversion concept of revision. Personally, I never used
the revision in my own apps.
Merge branch 'working' of github.com:dabodev/dabo into working