Server is now less revealing in error messages to clients (local logging is still as verbose as requested)

Fixed multiple HTTP args encoding/parsing, store_event now uses SQL placeholders, more robust fetching of cat/tag in store_event, simplified map_id usage

Now auth/auth actually works. Now uses services on many places, where clients was used (and didn't work)

Fixed for now: /opt/warden_server_3/warden_server.py:427: Warning: Field 'request' doesn't have a default value

Mapping id updated
Category 'test' supported
Filtering by parent category

Authorization
Authentication