Directionality support/1.18 deployment

Some coordination for directionality support after deployment of MediaWiki 1.18.


 * 19-20 Sept:
 * test2 — ok


 * 21-22 Sept:
 * simplewiki — ok
 * simplewiktionary — ok
 * usabilitywiki — ok
 * strategywiki — RTL gadget deleted, MediaWiki:Common.css updated
 * One issue I found was Special:Gadgets so the Gadgets extension would need some fixes.. SPQRobin 15:44, 25 September 2011 (UTC)
 * mediawikiwiki — MediaWiki:Common.css fixed; class="mw-content-rtl" added to some translation pages (example)
 * hewikisource — ok


 * 26-27 Sept:
 * metawiki — RTL gadget deleted; MediaWiki:Common.css and RTL pages need to be updated
 * enwikiquote — ok
 * betawikiversity — some pages need to use new class="mw-content-rtl"
 * eowiki — ok
 * nlwiki — ok
 * incubatorwiki — RTL gadget deleted, RTL pages need to be updated


 * 4-5 Oct:
 * commonswiki
 * foundationwiki
 * remaining wikis