I have been installing the whole Nuxeo stack which includes Tomcat, but how could I deploy only the application on an existing Tomcat server?
Look at the assembly script which takes a Tomcat 6.0.20 and adapts it for Nuxeo: /> http://hg.nuxeo.org/nuxeo/nuxeo-distribution/file/release-5.4.2/nuxeo-distribution-tomcat/src/main/assemble/assembly.xml
Or simply look at a diff between an empty Tomcat: