Bug 22586: IntranetReportsHomeHTML no longer renders as HTML on reports-home.pl

Bug 22586: IntranetReportsHomeHTML no longer renders as HTML on reports-home.pl

As of 18.11 the IntranetReportsHomeHTML syspref no longer renders HTML
on report-home.pl. I think this is being filtered wrong in the template.

Test Plan:

1) Edit IntranetReportsHomeHTML, set to "<p>Test</p>"
2) View a report, note that you see the html p tags are displayed
litterly
3) Apply this patch
4) Reload the page
5) Note the p tags are rendered as html

Signed-off-by: George Williams <george@nekls.org>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>