Use fs-extra instead of wrench (closes #71)

Copied from a PR of another repo: https://github.com/AlexDisler/cordova-splash/pull/30/files

index.js

@@ -1,11 +1,10 @@
-var fs     = require('fs');
+var fs     = require('fs-extra');
 var path   = require('path');
 var xml2js = require('xml2js');
 var ig     = require('imagemagick');
 var colors = require('colors');
 var _      = require('underscore');
 var Q      = require('q');
-var wrench = require('wrench');
 var argv   = require('minimist')(process.argv.slice(2));
 
 /**
@@ -183,7 +182,7 @@ var generateIcon = function (platform, icon) {
   var dstPath = platform.iconsPath + icon.name;
   var dst = path.dirname(dstPath);
   if (!fs.existsSync(dst)) {
-    wrench.mkdirSyncRecursive(dst);
+    fs.mkdirsSync(dst);
   }
   ig.resize({
     srcPath: srcPath,

package.json

@@ -27,6 +27,7 @@
   "homepage": "https://github.com/AlexDisler/cordova-icon",
   "dependencies": {
     "colors": "^0.6.2",
+    "fs-extra": "^0.30.0",
     "imagemagick": "^0.1.3",
     "minimist": "^1.2.0",
     "q": "^1.0.1",