Added jar file creation in build

  <property name="jars"

            value="${lib.cadcUtil}:${ext.log4j}" />

  <target name="build" depends="compile" />

  <target name="build" depends="compile">

      <jar jarfile="${build}/lib/${project}.jar"

                    basedir="${build}/class"

                    update="no">

      </jar>

  </target>

</project>