Change the webapp code so that we fail if the user account does not exist on the server
Change the webapp code so that we fail if the user account does not exist on the server

Without this, if the user account did not exist on the server, we would return
"None", which was useless because then all the None data would get lumped
together and be unusable.

sunil07t/e-mission-server,e-mission/e-mission-server,shankari/e-mission-server,yw374cornell/e-mission-server,yw374cornell/e-mission-server,e-mission/e-mission-server,joshzarrabi/e-mission-server,yw374cornell/e-mission-server,e-mission/e-mission-server,yw374cornell/e-mission-server,sunil07t/e-mission-server,sunil07t/e-mission-server,joshzarrabi/e-mission-server,joshzarrabi/e-mission-server,shankari/e-mission-server,sunil07t/e-mission-server,shankari/e-mission-server,shankari/e-mission-server,e-mission/e-mission-server,joshzarrabi/e-mission-server