fixed Utils.FileSystem overwriting 'fs' module even when 'original-fs' is broken

Author: devsnd

util/fileSystem.js

@@ -2,7 +2,10 @@ exports.require = function() {
   var fs = require("fs");
   if (process.versions['electron']) {
 	  try {
-		  fs = require("original-fs")
+	    originalFs = require("original-fs");
+	    if (Object.keys(originalFs).length > 0) {
+	      fs = originalFs;
+      }
 	  } catch (e) {}
   }
   return fs