Add Travis CI configuration.
Add Travis CI configuration.

ipsosante/django-subdomains,larikov/django-subdomains,aajtodd/django-subdomains,mysociety/django-subdomains,messense/djsubdomains,adi-li/django-subdomains,nanopony/django-subdomains,jangeador/django-subdomains,tkaemming/django-subdomains