NXP-10071 activating tomcat 7 in nuxeo distribution
NXP-10071 - switch default for nuxeo.server.declare_datasources to false and NuxeoContainer.autoactivation to true
NXP-10071 - FreeMarker cleanup
NXP-10071 - use xa datasource only if no nuxeo.db.singleDataSource is defined
NXP-10071 - move nuxeo-runtime-launcher to Tomcat lib
NXP-10071 - upgrade to Tomcat 7.0.42, use lightened distrib
NXP-10598 - Follow servlet-api artifactId renaming