Readme: update table with fully supported themes
Developer: style blue info boxes

Example: https://developer.github.com/v3/gists/
Developer: oops, only target the api page
Developer: make json styling colors less harsh

Revert this once GitHub fixes syntax highlighting in the api
Pull Requests: Tweak travis status, merge some styles for #222
Issues: Fix assignee dropdown background
Issues: Fix inline comment color
Gist: Fix diff line counters
Pull request: style "Add more commits..." block

see https://github.com/StylishThemes/GitHub-Dark/pull/200
Releases: Fix upload file box
Themes: Add full support for remaining themes
version bump