The control flow is kinda confusing, cause of the desire to hold off on
converting the geni-lib script (reducing the time we are updating from the
origin repo in the first please wait modal). Not really happy with how it
turned out.

I also need to change the code that does the initial fetch of a new repo,
and then a delete. The only reason for this is so we do not leave dangling
repos on our file system if the user wanders away before submitting the
form. Need a better way to deal with this, many options available, but
probably need to do something soon since the overhead (second fetch) on
larger repos will be annoying.