log4j.properties

[JASON HOLT]

I'm new to Java, Tomcat, and Wicket. I apologize in advance for asking the 
obvious.
 
Tomcat logs complain that log4j is not properly configured. I placed my 
log4j.properties file in the /WEB-INF/classes folder and errors stop.
 
I would like ALL Wicket applications to share a single log4j.properties file so 
I don't have to remember to include it in every application I deploy. Can I 
configure Tomcat to accomplish this? If so, how?
 
Using Tomcat 7.026, JDK 7u3, and Wicket 1.5.5
 
Thanks.