Use get_own_objects in util.user; support MRELATIONS
New error pages w/ base template
Use 401 for CSRF failure. Always CSRF even in DEBUG
Add missing CSRF tokens
load_modules() before db tasks
Fade out table buttons unless hovering
Add redis_client to app
Add icon.small
Remove caching of user ids/session_keys (unused elsewhere, will return)
When DEBUG = True, add /error/<code> endpoints