Apache Tomcat configuration requires manager-gui role & apache service stop/restart or system reboot

[Susan Spencer]

The following information should be added to the document at
https://help.ubuntu.com/10.04/serverguide/tomcat.html

In setting up an Apache server, the /etc/tomcat6/tomcat-users.xml must be updated with a user assigned to the manager-gui role:
1. Open tomcat-users.xml file:
     sudo gedit /etc/tomcat6/tomcat-users.xml
2. Add manager-gui role and create a user:
     <role rolename="manager-gui"/>
     <user username="mymanagerusername" password="s3cret" roles="manager-gui"/>
3. Restart the apache service for configuration changes to take effect:
     sudo service apache2 restart