* debian/tomcat6.{postinst,prerm}: Respect TOMCAT6_USER and TOMCAT6_GROUP as defined in /etc/default/tomcat6 when setting directory permissions and authbind configuration (Closes: #581018, LP: #557300) * debian/tomcat6.postinst: Use group "tomcat6" instead of "adm" for permissions in /var/lib/tomcat6, so that group "adm" doesn't get write permissions over /var/lib/tomcat6/webapps (LP: #569118)