Update version v0.16.0

Author: alexpenev-s

package.json

@@ -6,7 +6,7 @@
   ],
   "name": "hdb",
   "description": "SAP HANA Database Client for Node",
-  "version": "0.15.4",
+  "version": "0.16.0",
   "repository": {
     "type": "git",
     "url": "git://github.com/SAP/node-hdb.git"