Added cross-spawn to fix spawning issues on Windows

Author: JamesMessinger

lib/index.js

@@ -1,7 +1,7 @@
 'use strict';
 
 const SemVer = require('semver');
-const spawnSync = require('child_process').spawnSync;
+const spawnSync = require('cross-spawn').sync;
 const fs = require('fs');
 const path = require('path');
 const glob = require('glob');

package.json

@@ -55,6 +55,7 @@
   "dependencies": {
     "chalk": "^1.1.1",
     "commander": "^2.8.1",
+    "cross-spawn": "^5.0.1",
     "detect-indent": "^5.0.0",
     "glob": "^7.1.1",
     "inquirer": "^2.0.0",