Log Message:
Update to 0.6.6:

Noteworthy changes in version 0.6.6 (2007-11-15)
------------------------------------------------

* Slightly adjust the stream code.
  The check for fflush is omitted because the return
  value might be undefined. This fixes a problem reported
  from the NetBSD team.

* Don't use __inline__ in src/cipher.c (breaks on Sun CC).