Updated .travis.yml with latest django versions
Updated .travis.yml with latest django versions

pombredanne/django-hstore,djangonauts/django-hstore,djangonauts/django-hstore,pombredanne/django-hstore,Stranger6667/django-hstore,Stranger6667/django-hstore,djangonauts/django-hstore,Stranger6667/django-hstore,djangonauts/django-hstore,pombredanne/django-hstore,Stranger6667/django-hstore,pombredanne/django-hstore