Auto-removal of branches

[crohr]

For those of you who use a lot of short-lived branches, and build packages for all of them, it may have been slightly annoying to not have those branches removed from Packager.io when you remove them from your git repository.

This is no longer the case, as branch presence is now kept in sync with your repository. We also went back in time and removed any existing branch on Packager.io that is no longer present in the corresponding git repository.

Happy packaging!