Fix DB URL parsing problem (#115)

diff --git a/provider/app.js b/provider/app.js
index 9ba5f98..e46ac71 100755
--- a/provider/app.js
+++ b/provider/app.js
@@ -46,7 +46,12 @@
     var method = 'createDatabase';
     logger.info(method, 'creating the trigger database');
 
-    var nano = require('nano')(dbProtocol + '://' + dbUsername + ':' + dbPassword + '@' + dbHost);
+    var nano = require('nano')({
+        url: dbProtocol + "://" + dbHost,
+        requestDefaults: {
+            auth: {user: dbUsername, pass: dbPassword}
+        }
+    });
 
     if (nano !== null) {
         return new Promise(function (resolve, reject) {