Add HTTP_HOST to environ variables mocked. Also add license headers to run.py.
from django.conf.urls.defaults import *
urlpatterns = patterns('examples.hello.views',
(r'^html/$', 'hello_html'),
(r'^text/$', 'hello_text'),
(r'^write/$', 'hello_write'),
(r'^metadata/$', 'metadata'),
(r'^getdata/$', 'get_data'),
(r'^postdata/$', 'post_data'),
)