added helios verifier to urls and fixed auth jsonfield for null values

auth @ 07743fc0

-Subproject commit 65e40d871c9e2db1e330d40ed6345b1cee4537d3
+Subproject commit 07743fc051e0ef85d81604839526541d450f04a9

urls.py

@@ -10,6 +10,7 @@ urlpatterns = patterns(
 
     # SHOULD BE REPLACED BY APACHE STATIC PATH
     (r'booth/(?P<path>.*)$', 'django.views.static.serve', {'document_root' : settings.ROOT_PATH + '/heliosbooth'}),
+    (r'verifier/(?P<path>.*)$', 'django.views.static.serve', {'document_root' : settings.ROOT_PATH + '/heliosverifier'}),
 
     (r'static/auth/(?P<path>.*)$', 'django.views.static.serve', {'document_root' : settings.ROOT_PATH + '/auth/media'}),
     (r'static/helios/(?P<path>.*)$', 'django.views.static.serve', {'document_root' : settings.ROOT_PATH + '/helios/media'}),