fixes #5612 - use correct permissions for authz in parameters API
(cherry picked from commit 7cb05aa94e942bd3917c6cde33957288ea84a735)
fixes #812 - new permissions model, user group role and nest support, role filters for better granularity
removed params required => from update action
This commit adds most of the functionality required for API v1
The overall goal was to extract the existing JSON responseoverall controllers, and to move them to a seperate name space.
