pylint cleanup

cms/djangoapps/contentstore/views/dev.py

+"""
+Views that are only activated when the project is running in development mode.
+These views will NOT be shown on production: trying to access them will result
+in a 404 error.
+"""
+# pylint: disable=W0613
 from mitxmako.shortcuts import render_to_response
 
 
 def dev_mode(request):
+    "Sample static view"
     return render_to_response("dev/dev_mode.html")

cms/urls_dev.py

+"""
+URLconf for development-only views.
+This gets imported by urls.py and added to its URLconf if we are running in
+development mode; otherwise, it is ignored.
+"""
 from django.conf.urls import url
 
 urlpatterns = (