- add blind signature functionality to pyelliptic as described in #1409
- add tests for blind signatures
- PEP8 fixes for pyelliptic
- some minor refactoring is necessary for further integration, this is just a
minimal implementation to pass a test
* Added: Sphinx configuration including readthedocs config
* Added: Sphinx fabric task to auto-document the project
* Fixed: Some issues in the code causing autodoc to fail when parsing
* Added: Manual docs - structure, proof of concepts and RsT examples
* Fixed: RsT formatting in docstrings
* Fixed: Some adjacent minor style and lint issues