Bumped up version to 0.5.0 and updated documentation.

Bumped up version to 0.4.0

Bumped up version due to new feature: daterange

New release v0.3.0

* Added language templates for deocy repositories.
* Closes #4

Version 0.2.0 completed:

- distutils install method is overridden to also install man page
- added 'build' to .gitignore
- bumped up version to 0.2.0

Added test for create_script().