DDR tables now suppressed if empty

-<div>
+<ui:call ui:template="{= ?template }" arg:report="{= ?report }">
+	<ui:if ui:condition="{= spr:rowCount(?rs) &gt; 0 }">
+		<div>
 		<hr />
 		<ui:setContext ui:queryGraph="&lt;http://www.reportinghub.no/ep/spin/ddr-tables&gt;">
 			<h2>{= ui:label(?template) }</h2>
@@ -17,7 +19,6 @@
 					</ui:forEach>
 				</tr>
 			</ui:setContext>
-		<ui:call ui:template="{= ?template }" arg:report="{= ?report }">
 			<ui:forEach ui:resultSet="{# SELECT ?row ?rowIndex WHERE { ?rs spr:rowIndices ?rowIndex } }">
 				<tr class="ddrTR">
 					<ui:forEach ui:resultSet="{# SELECT ?cell WHERE { (?rs ?rowIndex) spr:rowCells (?cell ?cellIndex) } }">
@@ -25,7 +26,8 @@
 					</ui:forEach>
 				</tr>
 			</ui:forEach>
-		</ui:call>
 		</table>
 		<br />
-</div>
\ No newline at end of file
+		</div>
+	</ui:if>
+</ui:call>
\ No newline at end of file