Startin up the python port.
Initial implementation of `fin`.
Adding a simple time parsing module.
Added ensure_working helper function.
Fix `is_working` function.
Added note action.
Tagging now supported.
Implemented status command.
Added single letter shortcuts and removed `edit`.
The ti executable script now uses python impl.
Tests now run with python impl. Except for one.
Save human-readable JSON.
Relative time now available.
Relative timing now almost `dtime` compliant.
Remove shell implementation.
Set default sheet file to `~/.ti-sheet`.
Merge parse_time into main module.
Removed plugins test.
Removed docopt dependency.
Moved the script to be an executable directly.