'RecentChange_save': Called at the end of RecentChange::save().
&$recentChange: RecentChange object
+'RecentChangesPurgeRows': Called when old recentchanges rows are purged, after
+deleting those rows but within the same transaction.
+$rows: The deleted rows as an array of recentchanges row objects (with up to
+ $wgUpdateRowsPerQuery items).
+
'RedirectSpecialArticleRedirectParams': Lets you alter the set of parameter
names such as "oldid" that are preserved when using redirecting special pages
such as Special:MyPage and Special:MyTalk.