Projects page: only tracks default branch

[stvnrlly]

The Github API only provides the activity for the default branch (usually master), so the graph and ranking are not totally accurate. Some projects might be actively developing on more than one branch, or have separate tracks for master and gh-pges.

It seems that this is something that will have to be handled with a shell script, using something like git log and/or git shortlog.

[georgiamoon]

@stvnrlly is there an overview of how the projects.js and projects page works? I'm looking at forking this site for another group, mostly to build off this projects page model..