&$list: List object (defaults to NULL, change it to an object instance and return
false override the list derivative used)
+'FileUpload': When a file upload occurs
+$file : Image object representing the file that was uploaded
+
'GetInternalURL': modify fully-qualified URLs used for squid cache purging
$title: Title object of page
$url: string value as output (out parameter, can modify)
&$obj: RawPage object
&$text: The text that's going to be the output
+'SearchUpdate': Prior to search update completion
+$id : Page id
+$namespace : Page namespace
+$title : Page title
+$text : Current text being indexed
+
'SiteNoticeBefore': Before the sitenotice/anonnotice is composed
&$siteNotice: HTML returned as the sitenotice
Return true to allow the normal method of notice selection/rendering to work,