Fixed: I had to add my projects folder to sys.path in my wsgi script. This is my new wsgi script:
activate_this = '/home/nimbiotics/.virtualenvs/nrpccms/bin/activate_this.py' execfile(activate_this, dict(file=activate_this))
import os import sys
path = '/home/nimbiotics/projects' if path not in sys.path: sys.path.append(path)
##################################################### nrpccms_path = '/home/nimbiotics/projects/nrpccms' if nrpccms_path notin sys.path: sys.path.append(nrpccms_path)
#os.environ['DJANGO_SETTINGS_MODULE'] = 'nrpccms.settings'
import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler()