Einige Fehler in Bezug auf wad2bin wurden behoben.

* Fixed an issue that made you unable to set the drive letter manually.
* Fixed many issues relating installing WAD's to the SD Card.
* The script will now delete any "!" and "&" characters from your file names that would cause -1 error.
* You can now see the output of wad2bin if it fails.
* Got rid of "Install a single WAD file" option.
* Added error info when wad2bin crashes.