Set logo text and link

Signed-off-by: Thomas Schneider <thomas@fsmpi.rwth-aachen.de>

request-tracker/templates/RT_SiteConfig.pm.j2

@@ -93,3 +93,8 @@ Set($DatabaseName, 'rtdb');
 ### E-Mail
 Set($ParseNewMessageForTicketCcs, 1);
 Set($SetOutgoingMailFrom, '{{rt_bounceaddress}}');
+
+### Logo
+Set($LogoAltText, '{{rt_logotext}}');
+Set($LogoLinkUrl, '{{rt_logolinkurl}}');
+#Set($LogoUrl, it’s easier to upload this in the web interface);