Improve remediation pages and fix preview page
Violation preview btn: ignore click when disabled
Fix search forms submission
Conf: show violations templates in a select popup
Activate button to delete a node
Fix pagination and sort of nodes/users pages
Merge branch 'feature/catalyst-admin' of https://github.com/inverse-inc/packetfence into feature/catalyst-admin

Conflicts:
	html/pfappserver/root/static/admin/nodes.js
	html/pfappserver/root/static/admin/users.js