ItEr07S07ArquitecturaClientesItEr06S03: Fixing bug. When a task is deleted a vertical scroll appeared.

Changes made on ganttpanel.dsp to avoid the creation of id ganttpanel twice on invalidation.

navalplanner-gantt-zk/src/main/resources/web/ganttz/ganttpanel.dsp

@@ -1,16 +1,12 @@
 <%@ taglib uri="http://www.zkoss.org/dsp/web/core" prefix="c" %>
 <%@ taglib uri="http://www.zkoss.org/dsp/zk/core" prefix="z" %>
 
-
 <c:set var="self" value="${requestScope.arg.self}"/>
 
-<div id="ganttpanel">
-
-
 <div id="${self.uuid}" z.type="ganttz.ganttpanel.GanttPanel" ${self.outerAttrs}>    
-    <c:forEach var="child" items="${self.children}">
-        ${z:redraw(child, null)}
-    </c:forEach>    
-</div>
-
+    <div id="ganttpanel">
+        <c:forEach var="child" items="${self.children}">
+            ${z:redraw(child, null)}
+        </c:forEach>
+    </div>
 </div>