(legacy) vpn_openvpn_client.php add duplicate option + some style fixes and cleanups. closes https://github.com/opnsense/core/issues/676

o Set tabindex to first for "tab -> type" action
o Translate "Search" string
o Redesign matcher to allow searching for multiple words at once
o Hide unwanted dashboard root submenu item
o Whitespace sweep

(legacy) cleanup spaces and add curly braces in rc.filter_synchronize before changing things there...

o Don't clobber manually installed extensions
o Remove the XDebug enable in favour of an autoload if available
o No longer install XDebug by default

Adds long overdue copyrights, been handling this file since 2014.

(legacy) add "clear log" button to other log view types, closes https://github.com/opnsense/core/issues/652

(legacy) remove encoding validation in nat.._edit, closes https://github.com/opnsense/core/issues/671

(legacy) openvpn, fix kill client + some cleanups, closes https://github.com/opnsense/core/issues/687

(proxy) add support for downloading compressed lists (tar.gz/gz/zip), closes https://github.com/opnsense/core/issues/231

(legacy, firewall/nat) disable port selection on proto other then udp/tcp, closes https://github.com/opnsense/core/issues/651

(lang) sort collected gettext from "make dynamic", closes https://github.com/opnsense/core/issues/659

(legacy) fix  ldap import authentication container layout, closes https://github.com/opnsense/core/issues/673