Don't escape pageheading

Signed-off-by: Richard Mansfield <richardm@catalyst.net.nz>

htdocs/theme/raw/templates/view/blocks.tpl

 {include file="viewmicroheader.tpl"}
-<h1>{$PAGEHEADING|escape}</h1>
+<h1>{$PAGEHEADING}</h1>
 {if $columns}
     {str tag="editblockspagedescription" section="view"}