Minor Description
To increase the utility of the cayenne-modeler plugin, it should allow users to configure a "model file" to be opened when the plugin is run. Should no file be specified, the plugin should search through the top level of non-test resource directories for cayenne.xml, using the first one found. Failing that, src/main/webapp/WEB-INF/cayenne.xml should also be tried before falling back to opening the modeler with no project specified.