decided not to use builtin sdcard module cause of fork/waitpid problems

while running for e.g. aroma fm the installzip function (used for
executing aroma fm from a zip file) calls waitpid what causes the main
process to freeze (and all threads). cause im running the emulated sd
card process in a thread the mountpoint /sdcard freezes too and is
unable to emulate which causes aroma fm to freeze cause its trying to
access /sdcard and waiting for an reply