Fix example module field.
Issue #2309615 by clemens.tolboom: Fixed Revert styling by hosting_site.
Issue #2033727 by helmo: Fixed running tasks on a deleted site.
Issue #1680010 by realityloop: Added launchd plist to start hosting-queued on OS X.
Issue #2183551 by tvl: Fixed Validate automatic domain field.
Issue #2183551 by helmo: Quote a var used in preg_match()