As they are set to TITLE we can just assign TITLE to PAGEHEADING in
the smarty function call.

We can later override the PAGEHRADING with
$smarty->assign('PAGEHEADING', string); if we need to.

Have also updated a few files where TITLE was not defined.

behatnotneeded - everything should work as before

Change-Id: I3ea592cd37344e68c6e90a3c64947cf99db59471
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>