- fixed fsop_deleteFolder(). apparently unlink() should've never been used to delete a folder because it doesn't delete a folder. now using rmdir().
- Fixed nand and emunand source buttons to set the channels type correctly.
- Try to support drives that lack an MBR. taken from usblgx (Blackb0x).
- fixed back button for GC settings menu.
the optional source menu download is only if you want a source menu and are using the default theme. if you already have a source menu set up for your default theme or you are using rhapsodii shima theme source menu then you do not need to download it.