fixed issue #949 using @alexkirmse's patch
Fixed issue with mobile nav choosing the last option by default. Fixes #950.
Use the Github API repo sorting.

The Github API can sort by pushed time, no need to do it manually.
http://developer.github.com/v3/repos/#list-user-repositories

This is both more efficient, Github does the sorting, but it also
fixes a bug.  Because the list of results are paginated, if you have
more than a page's worth of repositories it will only sort that page.
This results in a false view of what has been recently pushed.

For a good example, try my github account "schwern" with and
without this patch.
Merge pull request #1031 from schwern/github_repo_sorting

Use the Github API repo sorting.
Use HTML5 '&' character to connect query params in GitHub API call. #1031.
closure
Merge branch 'master' of git://github.com/imathis/octopress into source
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