Updating django version requirement to Django 1.8

Author: adamcharnock

.travis.yml

@@ -74,8 +74,6 @@ after_success:
   fi
 env:
   matrix:
-  - TEST_TYPE=build DJANGO_VERSION=1.6
-  - TEST_TYPE=build DJANGO_VERSION=1.7
   - TEST_TYPE=build DJANGO_VERSION=1.8
   - TEST_TYPE=build DJANGO_VERSION=1.9
   global:
@@ -88,9 +86,5 @@ matrix:
   - python: '2.7'
     env: TEST_TYPE=lint
   exclude:
-  - python: '3.3'
-    env: DJANGO_VERSION=1.6
-  - python: '3.3'
-    env: DJANGO_VERSION=1.7
   - python: '3.3'
     env: DJANGO_VERSION=1.8

setup.py

@@ -66,7 +66,7 @@ def run_tests(self):
     ],
     extras_require={
         'django': [
-            'Django>=1.6.0',
+            'Django>=1.8.0',
             'singledispatch>=3.4.0.3',
             'graphql-django-view>=1.0.0',
         ],