NLU service has updated mechanism of specifying the API version

Author: chughts

README.md

@@ -7,6 +7,11 @@ Node-RED Watson Nodes for IBM Cloud
 
 <a href="https://cla-assistant.io/watson-developer-cloud/node-red-node-watson"><img src="https://cla-assistant.io/readme/badge/watson-developer-cloud/node-red-node-watson" alt="CLA assistant" /></a>
 
+### New in version 0.6.7
+- Enable Opt-out option for Conversation Node.
+- Implement time out option for response from Conversation Node.
+- Bump to v 3.2.1 of watson-developer-cloud dependency.
+
 
 ### New in version 0.6.6
 - Added Mute option for STT Node warning status when running in Streaming mode

package.json

@@ -1,6 +1,6 @@
 {
   "name": "node-red-node-watson",
-  "version": "0.6.6",
+  "version": "0.6.7",
   "description": "A collection of Node-RED nodes for IBM Watson services",
   "dependencies": {
     "async": "^1.5.2",
@@ -10,7 +10,7 @@
     "temp": "^0.8.3",
     "qs": "6.x",
 	  "image-type": "^2.0.2",
-    "watson-developer-cloud": "^3.0.6",
+    "watson-developer-cloud": "^3.2.1",
     "kuromoji": "^0.1.1",
     "word-count": "^0.2.2",
     "is-docx": "^0.0.3",

services/natural_language_understanding/v1.js

@@ -183,7 +183,7 @@ module.exports = function (RED) {
       serviceSettings = {
         username: username,
         password: password,
-        version_date: NaturalLanguageUnderstandingV1.VERSION_DATE_2017_02_27,
+        version: '2018-03-16',
         headers: {
           'User-Agent': pkg.name + '-' + pkg.version
         }