Upgrade versions of dependencies and bump to v0.0.6 (#17)

This fixes #16 which was a duplicate of fent/node-ytdl-core#287.
Upgrading "ytdl-core" to "0.20.2" solved it.
Meanwhile, ugraded other dependencies as well.
The upgraded "check-node-version" NPM package's API seems to be changed, therefore needed to update "lib/prerequisites_checker.js" accordingly.

Bumped the version to v0.0.6

README.md

@@ -22,8 +22,8 @@ in future.
 
 ### Installation
 
-Please make sure that you have `node v6.x` or latest 
-and 
+Please make sure that you have `node v6.x` or latest
+and
 `npm v5.x` or latest versions installed on your machine.
 
 ```
@@ -81,6 +81,6 @@ It then downloads the matching music from YouTube.
 
 ### Copyright and License
 
-Copyright (c) 2017, Vishal Telangre. All Rights Reserved.
+Copyright (c) 2017-2018, Vishal Telangre and Contributors. All Rights Reserved.
 
 This project is licenced under the [MIT License](LICENSE.txt).

lib/prerequisites_checker.js

@@ -7,19 +7,21 @@ function PrerequisitesChecker(callback) {
   // here - https://github.com/vishaltelangre/music-dl/issues/5
   // and here: https://github.com/vishaltelangre/music-dl/issues/4.
   check({ node: ">= 6.3.1", npm: ">= 5.0.3" }, {}, function (err, result) {
+    var versions = result.versions || {};
+
     if (err) console.error(err);
 
     var printErrorIfVersionNotSatisfied = function (tool) {
-      if (result[tool].isSatisfied) return;
+      if (versions[tool].isSatisfied) return;
 
       var message = "✗ Please upgrade `"
         + tool.bold
         + "` to version "
-        + result[tool].wanted.range.bold
+        + versions[tool].wanted.range.bold
         + " or latest. Current "
         + tool
         + " version is "
-        + result[tool].version
+        + versions[tool].version
         + ".";
 
       console.error(message.red)
@@ -28,8 +30,8 @@ function PrerequisitesChecker(callback) {
     printErrorIfVersionNotSatisfied('node');
     printErrorIfVersionNotSatisfied('npm');
 
-    if (result.node.isSatisfied &&
-        result.npm.isSatisfied &&
+    if (versions.node.isSatisfied &&
+        versions.npm.isSatisfied &&
         (typeof callback === "function")) {
       callback();
     }

package.json

@@ -4,7 +4,7 @@
     "type": "git",
     "url": "https://github.com/vishaltelangre/music-dl"
   },
-  "version": "0.0.5",
+  "version": "0.0.6",
   "description": "Download audio song playlists/albums from multiple song providers!",
   "main": "index.js",
   "author": "Vishal Telangre <[email protected]>",
@@ -13,17 +13,17 @@
     "music-dl": "./index.js"
   },
   "dependencies": {
-    "check-node-version": "^2.1.0",
+    "check-node-version": "^3.2.0",
     "cli": "^1.0.1",
-    "colors": "^1.1.2",
+    "colors": "^1.2.1",
     "fluent-ffmpeg": "^2.1.2",
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.5",
     "mkdirp": "^0.5.1",
-    "node-id3": "^0.0.9",
-    "osmosis": "^1.1.4",
-    "promise": "^7.3.0",
-    "update-notifier": "^2.2.0",
-    "youtube-search": "^1.0.10",
-    "ytdl-core": "^0.14.4"
+    "node-id3": "^0.1.3",
+    "osmosis": "^1.1.6",
+    "promise": "^8.0.1",
+    "update-notifier": "^2.4.0",
+    "youtube-search": "^1.1.0",
+    "ytdl-core": "^0.20.2"
   }
 }