Vela corrections

Makes the corrections to the fermi analysis we discussed... although npred counts now goes down to 145 which seems low?
I kept the separate files too, I don't know if these would be useful for people only wanting to re-generate one of the data files... I was thinking that if some people aren't familiar with doing a fermi analysis it might not be clear which commands are needed in which order for each output? Or is it OK to just make them look in make.sh?