- TODO: the server services plugin is not capable of enabling and disabling addon plugins, yet

- added module_name parameter on registerEvent

- made placeholders visible for apache, too
- added event raise at formdef loading (on_before_formdef and on_after_formdef)
- added possibility to put plugin files into module/lib/plugin.d/ directory

- Added UFW firewall support.

- fix indentation
- get it nearer than similar server/lib/ files