Fix paddings on single button popup in Birman skin in Safari.
Toggle single button popup on button click.
Fix height of single button in Flat skin.
Always use HTTPS for Twitter (#58).
Disable Google+ counter on HTTPS pages (close #58).
Add links to changelog and license.
Fix license link.
Tweak license.
Update jscs and other deps.
Add “likes or shares” section to readme.
Update grunt-contrib-imagemin.
Downgrade grunt-contrib-stylus to fix build.

Because of https://github.com/LearnBoost/stylus/issues/1436.
Optional detect service from data-service attribute
Add posibility of using data-service to README
Skip excess loop in detectService
Merge pull request #61 from fliptheweb/master

Optional service detection from data-service attribute.
Service detection refactoring (#61).
Tweak contributing guidelines.
Tweak readme and contributing guidelines.
Changelog.