let vs. const bugfixing

* Converted some 'let's to 'const's
* Converted some 'const's to 'let's
* Version 1.2.4

api/system.js

@@ -40,9 +40,9 @@ exports.get = function (app, data, callback) {
   const clientCollection = app.db.collection('client');
   const messageCollection = app.db.collection('message');
   const contributorCollection = app.db.collection('contributor');
-  let parallelTasks = {
+  const parallelTasks = {
     client: function (asyncCallback) {
-      let keys = {
+      const keys = {
         android: 1,
         ios: 1,
         windows: 1

api/txtweb.js

@@ -39,7 +39,7 @@ const status = require(path.join(__dirname, '..', 'status'));
 
 
 const parseMessage = function (app, data, callback) {
-  const reply = [
+  let reply = [
     'Register with the VITacademics SMS Service: @vitacademics register [Campus] [RegNo] [DoB]',
     'Get Course Details:  @vitacademics course [CourseCode]',
     'Get Today\'s Classes: @vitacademics today',

app.js

@@ -178,7 +178,7 @@ async.waterfall([
 
     // Catch 404 and forward to error handler
     app.use(function (req, res, next) {
-      let err = new Error('Not Found');
+      const err = new Error('Not Found');
       err.status = 404;
       next(err);
     });

background.js

@@ -31,7 +31,7 @@ const handleMain = require(path.join(__dirname, 'handlers', 'main'));
 const handleMobile = require(path.join(__dirname, 'handlers', 'mobile'));
 const handleShare = require(path.join(__dirname, 'handlers', 'share'));
 
-let app = {};
+const app = {};
 /*
  var onConnect = function (err, db) {
  app.db = db;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vitacademics",
-  "version": "1.2.3",
+  "version": "1.2.4",
   "description": "VITacademics API Server and Web App",
   "homepage": "https://vitacademics-rel.herokuapp.com/",
   "bugs": {