It would be nice to have a button for the admins inside the settings to force github sync. This way you dont have to wait for the periodic sync if you want to immediately reflect some changes or such.
Will be available in the next beta build.
It would also be great to make this doable either in command line or by pinging an URL, so that this can be automated and allow live-reload.
I was just looking for this functionality (or answer - if it is possible)