Allow a range of django versions

requirements.txt

 dogapi==1.2.1
-django==1.8.13
+django>=1.8.14,<1.9
 django-extensions==1.5.9
 django-model-utils==2.3.1
 # Use the same cherry-picked repo as edx-platform

setup.py

@@ -33,7 +33,7 @@ def load_requirements(*requirements_paths):
 
 setup(
     name='edx-submissions',
-    version='1.1.1',
+    version='1.1.2',
     author='edX',
     description='An API for creating submissions and scores.',
     url='http://github.com/edx/edx-submissions.git',