ONOS-1783 - GUI -- Refresh buttons for tabular views added. Minor table.js refactor.

Change-Id: Iee6c65fa8477b367e40a556c3c820ca454601a5f
diff --git a/web/gui/src/main/webapp/app/view/cluster/cluster.css b/web/gui/src/main/webapp/app/view/cluster/cluster.css
index 5025062..83ba8d8 100644
--- a/web/gui/src/main/webapp/app/view/cluster/cluster.css
+++ b/web/gui/src/main/webapp/app/view/cluster/cluster.css
@@ -18,5 +18,10 @@
  ONOS GUI -- Cluster View -- CSS file
  */
 
-#ov-cluster td {
+#ov-cluster h2 {
+    display: inline-block;
+}
+
+#ov-cluster div.ctrl-btns {
+    width: 45px;
 }
\ No newline at end of file