- All tests (I hope) now properly remove completed.data on exit, which
should prevent certain non-deterministic tinderbox results caused by
residual data.
- Added unit tests to cover automatic colorization by priority.
- Added unit tests to cover automatic disabling of color when !isatty.
- Added unit tests to cover display of unsupported configuration
variable in the 'version' report.
- Added support the '_forcecolor' configuration variable to allow the
possibility of unit tests that test color support, yet redirect
output to a file. This configuration variable will not be
documented.
