The New Year's Release

Aside from updating the year in (hopefully) all the copyright messages, this release also includes:

• BACKTRACK support for port-based disk I/O (eg, the ATC disk controller)
• An operational command-line (Node) version of PCjs (again)

The command-line version of PCjs seems destined to break at least once every month or two, because I simply don't use/test it enough. I still have high hopes for the command-line version, including using it to perform a series of emulation unit tests, but there's still too much feature-work to do.