Fix errors in Python 2, used six to workaround encoding weirdness, all tests pass on both Py2/3
Fix errors in Python 2, used six to workaround encoding weirdness, all tests pass on both Py2/3

gwasser/django-helpdesk,mrkiwi-nz/django-helpdesk,rossp/django-helpdesk,mrkiwi-nz/django-helpdesk,django-helpdesk/django-helpdesk,rossp/django-helpdesk,django-helpdesk/django-helpdesk,mrkiwi-nz/django-helpdesk,gwasser/django-helpdesk,rossp/django-helpdesk,gwasser/django-helpdesk,django-helpdesk/django-helpdesk,rossp/django-helpdesk,mrkiwi-nz/django-helpdesk,gwasser/django-helpdesk,django-helpdesk/django-helpdesk