hard-coded URL in ProcessEditForm

[Alistair Marshall]

The use of the autocomplete feature for entering the processes team members requires the url of the ajax request.
This should be filled in using an the reverse url function however when this is used, models are no longer imported into views.py

As a workaround the url has been hard coded however this should be fixed properly by tracing why reverse causess issues

Current guess:
perhaps moving the forms out of models folder into a folder of their own will help - this is a lot of work and may not actually fix it