New header for database host serving the request

NEWS.md

@@ -1,6 +1,10 @@
 1.16.1 - 2014-mm-dd
 -------------------
 
+New features:
+
+ * New header for database host serving the request
+
 Enhancements:
 
  * Upgrades dependencies:
@@ -9,7 +13,6 @@ Enhancements:
     * log4js
 
 
-
 1.16.0 - 2014-08-19
 -------------------
 

app/controllers/app.js

@@ -479,6 +479,9 @@ function handleQuery(req, res) {
                 if (global.settings.api_hostname) {
                   res.header('X-Served-By-Host', global.settings.api_hostname);
                 }
+                if (dbopts.host) {
+                  res.header('X-Served-By-DB-Host', dbopts.host);
+                }
                 formatter.sendResponse(opts, this);
             },
             function errorHandle(err){