- All tests (I hope) now properly remove completed.data on exit, which
should prevent certain non-deterministic tinderbox results caused by
residual data.
- Added feature #326, allowing tasks to be added in the completed state,
by using the 'log' command in place of 'add' (thanks to Cory Donnelly).
- Added log command to task.1 man page.
- Added log command to task-tutorial.5 man page.
- Added log command to help text.
- Added log command unit tests.