DBCS: inactivate enhanced input mode when VZ editor is loaded as TSR

DBCS:DIR: Fix fail in listing root directory on the drive (without sp…

…cifying any wildcard)

Merge remote-tracking branch 'upstream/master' into dbcs

DBCS: fix CTTY with enhanced input

documentation: update dates and history for 0.85a release

release 0.85

Update URLs in Japanese message

DBCS:fixstrs: increase MAXSTRINGS (to fix build break in building Ukr…

…ainian messages)

Add build option `upx' to build a compressed execuable