GUI -- Empty table now has a "no items found" row, and table width set to track window width.

Change-Id: I32d3403926fe3c3686fc0219b4880dcb15888e61
diff --git a/web/gui/src/main/webapp/app/common.css b/web/gui/src/main/webapp/app/common.css
index 5c7d2a1..ac3fff4 100644
--- a/web/gui/src/main/webapp/app/common.css
+++ b/web/gui/src/main/webapp/app/common.css
@@ -30,6 +30,11 @@
     border-radius: 0 0 8px 8px;
 }
 
+table.summary-list td.nodata {
+    text-align: center;
+    font-style: italic;
+}
+
 .light table.summary-list tr:nth-child(even) {
     background-color: #ddd;
 }