Renamed 'Update obm-tomcat' to 'Update Tomcat' for consistency.
Use the handler to update tomcat.
Remove logging for trigger.

This seems to prevent Tomcat from restarting sometimes.
Start Tomcat only after the trigger.

In theory, it should (at most) ensure that Tomcat will be available on startup,
instead of (in theory) triggering a restart twice.
Ensures Tomcat is updated after installing obm-sync.