- Fixed issue where sometimes, a disk drive would not be named

\Device\Harddisk{x}\DR{x} but rather \Device\Harddisk{x}\DR{y}

It turns out that instead, there is always a "Partition0" symlink to the correct DR-number.
- Fix bug when reading a number of bytes, where less was read out than requested.
Merge branch 'master' of github.com:LordMike/RawDiskLib