Import-Packages to enable pax logging from a war?

[Paul Spencer]

Karaf 3.0.2
MyFaces 2.2.6

Which “Import-Packages” must be included for a WAR to enable PAX-Logging?  

Currently I have included the following, but no logging from my WAR is in 
karaf.log
        org.slf4j;version="[1.7,2)",

Changing the log level from Karaf’s console has not affect.

Paul Spencer