email node - remove promises for node8

and fixup tests

social/email/61-email.js

@@ -529,11 +529,9 @@ module.exports = function(RED) {
             disabledCommands: ['AUTH', 'STARTTLS'],
 
             onData: function (stream, session, callback) {
-                simpleParser(stream, {
-                    skipTextToHtml: true,
-                    skipTextLinks: true
-                })
-                .then(parsed => {
+                simpleParser(stream, { skipTextToHtml:true, skipTextLinks:true }, (err, parsed) => {
+                    if (err) { node.error(RED._("email.errors.parsefail"),err); }
+                    else {
                         node.status({fill:"green", shape:"dot", text:""});
                         var msg = {}
                         msg.payload = parsed.text;
@@ -557,9 +555,9 @@ module.exports = function(RED) {
                         else { msg.attachments = []; }
                         node.send(msg); // Propagate the message down the flow
                         setTimeout(function() { node.status({})}, 500);
-                })
-                .catch(err => { node.error(RED._("email.errors.parsefail"),err); })
-                .finally(callback);
+                    }
+                    callback();
+                });
             }
         });
 

social/email/package.json

@@ -1,6 +1,6 @@
 {
   "name": "node-red-node-email",
-  "version": "1.8.0",
+  "version": "1.8.1",
   "description": "Node-RED nodes to send and receive simple emails.",
   "dependencies": {
     "imap": "^0.8.19",

test/social/email/61-email_spec.js

@@ -225,6 +225,7 @@ describe('email Node', function () {
 
                 n2.on("input", function(msg) {
                     //console.log("GOT",msg);
+                    try {
                         msg.should.have.a.property("payload",'Hello World\n');
                         msg.should.have.a.property("topic","Test");
                         msg.should.have.a.property("from",'foo@example.com');
@@ -232,6 +233,10 @@ describe('email Node', function () {
                         msg.should.have.a.property("attachments");
                         msg.should.have.a.property("header");
                         done();
+                    }
+                    catch(e) {
+                        done(e)
+                    }
                 });
 
                 n3.emit("input", {