Add OAuth scopes for manipulating public keys
Merge pull request #2 from github/public-key-scopes

Add OAuth scopes for manipulating public keys
Merge remote-tracking branch 'octokit/master'
Merge remote-tracking branch 'octokit/master'
Merge remote-tracking branch 'octokit/master'
Merge pull request #3 from github/update-octokit

Update octokit
Merge branch 'octgitcommit-header'
Merge remote-tracking branch 'octokit/master'
++RAC to v2.2.4
Merge remote-tracking branch 'octokit/master'
Merge https://github.com/octokit/octokit.objc
Merge remote-tracking branch 'octokit/master' into github-master
++RAC for +rac_sendAsynchronousRequest: fix
Merge remote-tracking branch 'github/master'