----------------
* ".fig" is now the default extension of config files
* Dropped support for python2
* Added support for python versions 3.7 and 3.8 -- versions 3.4 to 3.8 are officially supported
* ConfigContainer now includes module-related metadata: __name__, __file__, __package__
* Significant speed improvements
* Now using a custom importer, dropped dependency on polyloader
* Now PEP8 compliant (thanks to stevenkaras)
* Now using tox+nosetests for testing