together to keep things atomic:
1. Eliminate eprintf() as sbbs_t::lputs() and sbbs_t::lprintf() do the
   "right thing" (e.g. log to the event log when called from the event_thread).
2. Moved upload_stats() and download_stats() from ftpsrvr.c to getstats.c where
    I plan to make use of them for JS-based upload/download file support.

Most of the copyright years in the source code were misleading (the date of
most recent publish was actually later) and all were unnecessary. I've been
removing copyright years piecemeal, for a long time, but I decided it was time
to just perform a bulk search and (mostly) replace. In some cases, I left
old copyright years on files that either are not used (and soon to be removed)
or obsolete and unlikely to ever be touched again (e.g. Win9x FOSSIL VXD). Some
of the runtime binaries still contain copyright years and those were updated to
2018.

inserting (long) typedefs to prevent warnings, but in the case of the JS File()
class, actually supporting file lengths > 32-bit.