"vectorTabs" portlets.
* (bug 8556) Incorrect session failure warning on preview-on-open
namespaces (categories) when combined with $wgRawHtml.
+* Use content language in formatting of dates in revertpage message
+ (rollback revert edit summary) and do not adjust for user timezone.
=== API changes in 1.19 ===
* BREAKING CHANGE: action=watch now requires POST and token.