Fixed django versions in tox.ini

Author: Psykopear

tox.ini

@@ -15,9 +15,9 @@ envlist =
 [testenv]
 commands=python runtests.py -q --cov oauth2_provider --cov-report= --cov-append
 deps =
-    django17: Django==1.7.10
-    django18: Django==1.8.6
-    django19: https://www.djangoproject.com/download/1.9rc1/tarball/
+    django17: Django==1.7.11
+    django18: Django==1.8.7
+    django19: Django==1.9
     coverage<4
     -rrequirements/testing.txt