WIP #428
WIP #428 Selectable areas for group/forum settings

Cleans settings.php
WIP #428 Selectable areas for group/forum settings

I forgot the obvious ones :P
WIP #428 Selectable areas for group/forum settings.

Updates the upgrade script for post merge settings.
WIP #428 Selectable areas for group/forum settings.
WIP #428 Selectable areas for group/forum settings.

Updates option code.
Merge remote-tracking branch 'upstream/feature' into wip-428

Conflicts:
	inc/languages/english/admin/global.lang.php
	portal.php
Merge pull request #519 from Sama34/wip-428

Implements #428 Selectable areas for group/forum settings.