Log Message:
Update xmame to version 0.59.1.

Changes since xmame-0.58.3 include:
- Everything from MAME 0.59.
- Set some more sensible defaults for the various path settings in
  fileio.c (e.g., XMAMEROOT/samples for samplepath).
- Fixed a segfault in psikyosh games.  (David Haywood)