Licence pro strapping

All the PHP, prefs.css, and strapping.js are originally derived from
MediaWiki's vector theme, which is GPLv2:
http://gnu.org/licenses/gpl-2.0

Bootstrap is licensed under Apache License v2.0:
http://apache.org/licenses/LICENSE-2.0

Bootstrap icons are licensed under the CC BY 3.0
http://creativecommons.org/licenses/by/3.0/

csshover.htc, the hover fixer for IE, is licensed under the LGPL v2.1:
http://gnu.org/licenses/lgpl-2.1

All CSS, with the exception of Bootstrap and prefs.css, is CC0:
http://creativecommons.org/publicdomain/zero/1.0/
(Bootstrap is Apache, prefs.css is based on MW and is GPLv2+)