Update all never cleared when changing Identity Provider base URL scheme from HTTP to HTTPS

Identity server and Linux Access Gateway setup to talk together using HTTP. All confirmed as 
working well together i.e. users could access protected resources on the proxy and authenticate 
successfully at the Identity server. Next step was to change everything to talk SSL.

When changing the Identity server base URL from HTTP to HTTPS, you are prompted to restart
Tomcat. Tomcat is restarted, and everything is green and appears to work fine. The Administration 
Console however still shows that you need to update the Identity Servers. There is nothing to update
and clicking the update link does not appear to do anything.

This is a cosmetic bug. To workaround the issue, manually cause another change (change the IDP
session timeout and then back again to the original time) and then do the update. 

The restart of Tomcat should clear the update flag because restarting Tomcat causes a re-read of 
the Identity Server configuration, but failed in our case.