chore(controller): update django-cors-headers to 1.0.0

See https://github.com/ottoyiu/django-cors-headers/releases/tag/1.0.0

Author: mboersma

requirements.txt

@@ -6,7 +6,7 @@
 Django==1.6.8
 # FIXME: switch to upstream pending merge of https://github.com/kmmbvnr/django-fsm/pull/59
 git+https://github.com/deis/django-fsm@propagate-false
-django-cors-headers==0.13
+django-cors-headers==1.0.0
 django-guardian==1.2.4
 django-json-field==0.5.7
 djangorestframework==2.4.4