Allow twitter out node to specify extra parameters

to close #119. Thanks @sacbhale

social/twitter/27-twitter.html

@@ -205,6 +205,8 @@
     <p>To send a Direct Message (DM) - use a payload like "D {username} {message}"</p>
     <p>If <b>msg.media</b> exists and is a Buffer object, this node will treat it
        as an image and attach it to the tweet.</p>
+    <p>If <b>msg.params</b> exists and is an object of name:value pairs,
+    this node will treat it as parameters for the update request.</p>
 </script>
 
 <script type="text/javascript">

social/twitter/27-twitter.js

@@ -313,7 +313,8 @@ module.exports = function(RED) {
                         form.append("media[]",msg.media,{filename:"image"});
 
                     } else {
-                        twit.updateStatus(msg.payload, function (err, data) {
+                        if (typeof msg.params === 'undefined') { msg.params = {}; }
++                       twit.updateStatus(msg.payload, msg.params, function (err, data) {
                             if (err) {
                                 node.status({fill:"red",shape:"ring",text:"twitter.status.failed"});
                                 node.error(err,msg);

social/twitter/README.md

@@ -54,3 +54,5 @@ To send a Direct Message (DM) - use a payload like.
         D {username} {message}
 
 If **msg.media** exists and is a Buffer object, this node will treat it as an image and attach it to the tweet.
+
+If **msg.params** exists and is an object of name:value pairs, this node will treat it as parameters for the update request.

social/twitter/package.json

@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-twitter",
-    "version"       : "0.1.1",
+    "version"       : "0.1.2",
     "description"   : "A Node-RED node to talk to Twitter",
     "dependencies"  : {
         "twitter-ng": "0.6.2",