Add new version email and info box then new version is available

cas_server/static/cas_server/alert-version.js

@@ -0,0 +1,25 @@
+function alert_version(last_version){
+    jQuery(function( $ ){
+        $('#alert-version').click(function( e ){
+            e.preventDefault();
+            var date = new Date();
+            date.setTime(date.getTime()+(10*365*24*60*60*1000));
+            var expires = "; expires="+date.toGMTString();
+            document.cookie = "cas-alert-version=" + last_version + expires + "; path=/";
+        });
+
+        var nameEQ="cas-alert-version="
+        var ca = document.cookie.split(';');
+        var value;
+        for(var i=0;i < ca.length;i++) {
+            var c = ca[i];
+            while (c.charAt(0)==' ')
+                c = c.substring(1,c.length);
+            if (c.indexOf(nameEQ) == 0)
+                value = c.substring(nameEQ.length,c.length);
+        }
+        if(value === last_version){
+            $('#alert-version').parent().hide();
+        }
+    });
+}