Fix bugs in clean command
Bump license year
Fix textwidth
Make path functions Library staticmethods

That's where they should be.
Fix docstring textwidth
Simplify path operation
Optimize findsymlinks by caching stat
Add _public decorator
Add command type decorators
Fix command choices in main script
Fix bug renaming file to same name
Add path and tag conversion methods
Replace tagpath with path/tag conversion functions
Bump version to 0.5-dev
Add docstring
Fix refactoring bug
Work on documentation
[trivial] Clean up commands docstrings
[trivial] Improve docstrings in library
[trivial] Fix docstrings in operations