X84

- UI/bugfixes for last callers (default/lc.py) and default/ttyplay.py

- various issues with SyncTerm client resolved in bbs/editor.py and
default/editor.py, notably: don't draw on bottom line (causes scroll),
and use 'term.normal' before 'term.red_reverse' or other 'highlight'
colors, which were otherwise rendered invisible by SyncTerm.
- some timing negotiations lengthened for very-high latency links, and
dec vt query removed, it was found useless, increasing connect-time.

- please add/merge in new 'default.ini' and 'logging.ini' values.
You can move away your old files, start x84, then compare. There are
new sections such as [lord], [dosemu], and [door].
- last callers database must be rebuilt for migrations, this is the default
"debug" door for sysops, press ctrl + _ from the main menu to rebuild.
otherwise only new callers will appear.
- otherwise, this new release includes general display and bug fixes and
door support for LORD/dosemu, bbs/door.py and default/lord.py.