Removed most of absolute_import imports

Should be unneeded with Python 2.7 and up.
Added some unicode_literals along the way.

tests/test_utils/views.py

@@ -1,5 +1,3 @@
-from __future__ import absolute_import
-
 from django.http import HttpResponse
 from django.shortcuts import get_object_or_404
 
@@ -8,4 +6,4 @@ from .models import Person
 
 def get_person(request, pk):
     person = get_object_or_404(Person, pk=pk)
-    return HttpResponse(person.name)
+    return HttpResponse(person.name)