Refactored feeds in to services

Changed members route to use the GitHub service for data fetching

services/twitter.js

@@ -0,0 +1,29 @@
+'use strict';
+
+var Twitter = require('node-twitter');
+var config = require('../lib/config');
+var Promise = require('bluebird');
+
+var twitterRestClient = new Twitter.RestClient(
+  config.twitter.consumerKey,
+  config.twitter.consumerSecret,
+  config.twitter.token,
+  config.twitter.tokenSecret
+);
+
+module.exports = {
+  /**
+   * Fetch five latest tweets / retweets from Twitter
+   */
+  getTweets: function() {
+    return new Promise(function(resolve, reject) {
+      twitterRestClient.statusesUserTimeline({count: 5}, function(error, result) {
+        if (error) {
+          reject(error);
+        }
+
+        resolve(result);
+      });
+    });
+  }
+};