Some doc edits.
Make 'make distcheck' work.
Bump version for test distribution.
Remove pipeio3 test.
Sort option table by long option name for ease of maintenance.
Improve fts test for Cygwin.
Fixes in vms/vms-conf.h.
VMS fixes in io.c.
Fixes for Z/OS.
Add a FIXME comment.
Don't autogenerate version.c.
Further compilation fixes, VMS and Z/OS.