updated POM xsd location to http://maven.apache.org/xsd/maven-4.0.0.xsd
updated POM xsd location to http://maven.apache.org/xsd/maven-4.0.0.xsd

git-svn-id: 3b5e2f18b08d5a16511fe3544f649ee56a960e23@10669 52ab4f32-60fc-0310-b215-8acea882cd1b

mojohaus/jdepend-maven-plugin,mohanaraosv/jdepend-maven-plugin,mojohaus/jdepend-maven-plugin,mohanaraosv/jdepend-maven-plugin