Updated packages to remove vulnerabilities reported by npm

Implementation of feedcheck - not tested though

lib/feedcheck.js

@@ -0,0 +1,33 @@
+'use strict';
+
+const fork = require('child_process').fork;
+const log = require('npmlog');
+const path = require('path');
+
+let feedcheckProcess;
+
+module.exports = {
+    spawn
+};
+
+function spawn(callback) {
+    log.info('Feed', 'Spawning feedcheck process');
+
+    feedcheckProcess = fork(path.join(__dirname, '..', 'services', 'feedcheck.js'), [], {
+        cwd: path.join(__dirname, '..'),
+        env: {NODE_ENV: process.env.NODE_ENV}
+    });
+
+    feedcheckProcess.on('message', msg => {
+        if (msg) {
+            if (msg.type === 'feedcheck-started') {
+                log.info('Feed', 'Feedcheck process started');
+                return callback();
+            }
+        }
+    });
+
+    feedcheckProcess.on('close', (code, signal) => {
+        log.error('Feed', 'Feedcheck process exited with code %s signal %s', code, signal);
+    });
+}