Fix flake8 complaints

Move flake8 configuration into tox config file

setup.cfg

@@ -1,4 +0,0 @@
-[flake8]
-max-line-length = 120
-max-complexity = 10
-exclude = build,dist,docs/conf.py,*/migrations,*.egg-info

todo/settings.py

@@ -1,5 +1,4 @@
 from django.conf import settings
-from django.contrib.auth.models import User
 
 
 STAFF_ONLY = getattr(settings, 'TODO_STAFF_ONLY', False)

todo/views.py

@@ -389,7 +389,7 @@ def search(request):
         query_string = None
         found_items = None
 
-    return render(request,
-        'todo/search_results.html',
-        {'query_string': query_string, 'found_items': found_items},
-        context_instance=RequestContext(request))
+    return render(request, 'todo/search_results.html', {
+                      'query_string': query_string,
+                      'found_items': found_items
+                  }, context_instance=RequestContext(request))

tox.ini

@@ -16,3 +16,9 @@ commands = flake8 .
 basepython = python3.4
 deps = flake8
 commands = flake8 .
+
+[flake8]
+# TODO: reduce max-complexity, ideally to 10
+max-line-length = 120
+max-complexity = 21
+exclude = build,dist,docs/conf.py,*/migrations,*.egg-info