Implement GitHub status notifier
feature #114 Implement GitHub status notifier (skolodyazhnyy)

This PR was merged into the master branch.

Discussion
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Implement GitHub status notifier

Hi,

I have implemented very simple Github Notifier witch creates a new commit status when Sismo finishes a build. The notifier simply uses GitHub API and cURL to push status update.

It can be used for Pull Requests but originally it's all about icon next to branch name at branch list.

Commits
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5e5ddcc Implement GitHub status notifier
Merge remote-tracking branch 'upstream/master'