Yaz

-----

- Changed: references to yaz/yaz because the repository changed owner

-----

- Fixed: an obsolete import statement causing the unit tests to fail
- Moves all unit tests to separate files for readability

-----

- Added: **kwargs for tasks in plugins
`[2] <https://github.com/yaz/yaz/issues/2>`_

Having **kwargs in your task signature will automatically add
different keyword parameters from the next class in the __mro__.

- Changed: optional boolean arguments allow both --check and --no-check flags
regardless of the default value
`[6] <https://github.com/yaz/yaz/issues/6>`_
- Fixed: allow normal class extension for plugin classes
`[4] <https://github.com/yaz/yaz/issues/4>`_

-----

- Added: log messages when a task starts and ends, using info level
- Added: ``yaz.version`` containing the current version string
`[3] <https://github.com/yaz/yaz/issues/3>`_
- Changed: when no task is found to execute, exit with 1 (failure) instead of 0 (success)
- Fixed: arguments with underscores are now printed correctly in the generated
``--help`` output
`[7] <https://github.com/yaz/yaz/issues/7>`_
- Fixed: boolean and integer task return types should not be printed
`[8] <https://github.com/yaz/yaz/issues/8>`_

-----

- Added: ``CHANGELOG.rst``
- Changed: improvements to ``README.rst``

-----

- Added: ``yaz.Error class``. When raised, the error message is
printed (without the callstack) and the process exit code
is set to 1.