Pyppyn

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* [FIX] Determine available module(s) from a package
was not working on Windows. This functionality is not
required by GravityBee so it was removed to allow
everything to work smoothly on Windows.
* [ENHANCEMENT] Clean up code, comments.

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* [ENHANCEMENT] Integrate with `Satsuki <https://github.com/plus3it/satsuki>`_ to simplify the release process.
* [ENHANCEMENT] Integrate with `GravityBee <https://github.com/plus3it/gravitybee>`_ to create standalone
executables for platforms.

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* [FIX] Minor tweak to way that work directories are created to
avoid namespace collisions using UUIDs.

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* [ENHANCEMENT] Add convenience methods for accessing configuration data.
* [FIX] Improve state handling.

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* [ENHANCEMENT] Now provides support for packages with setup.py
and/or setup.cfg configuations.

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* [ENHANCEMENT] Improved usability by maintaining state of instances
of ConfigRep, so methods can be called and object will know whether
it is in the correct state to respond. It will call appropriate
prerequisite methods if not.
* [ENHANCEMENT] Provide a convenience method to give all required
packages in one list.