* ChangeTags::tagDescription() will return false if the interface message
for the tag is disabled.
* Added PageHistoryPager::doBatchLookups hook.
+* Added ParserCacheSaveComplete to ParserCache
* supportsDirectEditing and supportsDirectApiEditing methods added to
ContentHandler, to provide a way for ApiEditPage and EditPage to check
if direct editing of content is allowed. These methods return false,