Merge branch 'release-3.3.0' into develop
Optional support for version checking.
Merge branch 'f-versioned-configs' into develop
All tests pass in Python 3.2
Merge branch 'py3ksupport' into develop
./group/app/app.ini changed to ./app.ini
Merge branch 'unambiguous-cwd-filename' into develop
Better log message for unsecured files.
Cleaned up the development environment.
Old env-var names are gone now!

Also cleared up the log messages.
Version bumped to 4.0.0
Docs added, and reformatted for Spinx.
Merge branch 'release-4.0.0'