- Fix name space pollution by OpenSSL 0.9.8 reported by

- Fix name space pollution by OpenSSL 0.9.8 reported by
  Matthias Kurz -- applied his patch.
- Fix bpipe.c so that it does not modify results pointer.
  ***FIXME*** calling sequence should be changed.
- Remove some remaining references to dev_name.
- Fix calls to mount_dev() and unmount_dev() to
  correspond to returned value (bool instead of int).
- Try without success to make DVD writing work.