DAPHNE v0.99.6b

NOTE : this release is primarily to address the most frequent problems that
Daphne v0.99.6 users have been experiencing. In other words, it is mainly a
bug fix release, with no new features. The next version of
Daphne (´cvs version´) continues to be developed.

- all strcpy and strcat´s in ldp-vldp.cpp replaced with safer versions that cannot buffer overflow
- error messages relating to erroneous framefiles have been improved to ease troubleshooting
- command-line argument size has been increased to 320 characters from 80.
This allows people to run daphne from within many nested directories, or from within directories with long names
- a "-nojoystick" option has been added to prevent daphne from using a joystick if desired
- parallel port support for win2k/winxp is now built-in (an external program such as directio or allowio is no longer needed)
- error messages about rom loading failures have been made more verbose to ease troubleshooting