Cyra

- Fixed Python 2.7 incompatibilities

- Fixed Cyradoc toml formatting

New features:

- Cyradoc documentation generator
- Added default config builder attribute to configuration base class, no need for overriding the constructor
- Added validator and hook functions to config values
- Added docstrings

Fixed missing config value repr() and str().
Should fix autodoc issues.

Config values are not stored as static class variables anymore, so Cyra now allows multiple independent instances of one config class.

Initial release