GitHub Defreshed wót Kir_Antipov

Code available on GitHub.


Features
=========
- Old style header
- Light header
- Prettified About and Summary sections
- Prettified README
- Unhidden commit message
- Unhidden user status
- Stars, Followers and Following tabs are back
- Unrounded buttons, avatars and containers
- Full support of custom themes (e.g., GitHub-Dark)
- Full support of default themes (Default light, Default dark and Dark dimmed)
- Partial support of other scripts and extensions (e.g., Refined GitHub). Partial, since none of developers (including myself) can be sure that their extension is compatible with every plugin with unknown functionality in the world
- And much more!