Add a total progress bar to each change

On the status page have a progress bar indicating overall progress
by counting completed jobs.

Change-Id: Ie5911a0342c7925cf12b7e4de664009e243c6b0c
diff --git a/etc/status/public_html/index.html b/etc/status/public_html/index.html
index c3bcf00..383c872 100644
--- a/etc/status/public_html/index.html
+++ b/etc/status/public_html/index.html
@@ -26,13 +26,19 @@
             float: right;
         }
 
-        .zuul-result {
+        .zuul-job-result {
             float: right;
             width: 70px;
             height: 15px;
             margin: 0;
         }
 
+        .zuul-change-total-result {
+            height: 10px;
+            width: 100px;
+            margin: 5px 0 0 0;
+        }
+
         .zuul-spinner,
         .zuul-spinner:hover {
             opacity: 0;