modified:   picostack/templates/instances.html
- Looping over formset
- Handling no entries
- Template now contains a table based view with each row being a set form
  fields for corresponding data model.

modified:   picostack/urls.py
- Root redirects to a new URL called /instances which lists found instances
  as implemented by manage_instances() view.

modified:   picostack/vms/views.py
- Working with correct modelformset_factory() to access VmInstance.objects data
  to populate the formset.
- Started handling the POST arguments as according to the name of the submit
  button.