Fix "batik-1.9 causes FTBFS for freeplane due to changed artifacts/poms"...

Fix "batik-1.9 causes FTBFS for freeplane due to changed artifacts/poms" Upstream poms assume maven build. Ant build bundles contents of batik-i18n.jar and batik-constants.jar into batik-util.jar. Use  debian/maven.rules to adjust for this. (Closes: #875322)