- Config is now providing a default set of all configuration variables.
- The default set is used to both initialize a Config object, and to
create a sample .taskrc.
- Fixed broken unit tests that relied on the string 'ABSOLUTELY NO
WARRANTY' being present in the output of the version command. The
tests now rely upon 'GNU General Public License' instead.
- Fixed bug where "foo:bar" was not recognized as an attribute, and
generated an error rather than demoting is to part of the description.
- Fixed bug where en-passant deltas were applied only to the first task
in a sequence.
- Fixed various unit test.
