There are a number of conio changes in here too... too many to list.  Check
the diffs if you actually want to know what changed.

sourceforge.
https://sourceforge.net/p/syncterm/feature-requests/13/
This also addresses request 14
https://sourceforge.net/p/syncterm/feature-requests/14/
And disables uifc during startup.

casting to the preferred type inside the function.

shell connection on Windows to corrupt the entry.  Instead, add a generic
failure for any unsupported connection (including compile-time disabled
methods).

Fix settings like "RLogin Reversed" and "C128 (80col)" in enums.  Enum
values can't have spaces in them.

that's what Windows does when a non-blocking connect() fails.

Should fix the IPv6 localhost issue.

Exit the connect wait loop if the socket is set invalid.

Add -4 and -6 command-line arguments.
Add csr capability to built-in terminfo.

defined on that platform.

Fixes crash on OS X (and double-free everywhere else) after a getaddrinfo()
succeeds, but the connect fails after returning EWOULDBLOCK/EAGAIN/etc.

Reported by Michael Montague (thanks!)

or potentially more with a timeout to at least one byte.

Does not disable SSH options in menus, just makes the binary NEVER work
with Cryptlib.

prompts to read "Device Name" when in Serial connection mode.

Prevents hanging on DCD.

Follows DSR rather than DCD and DTR is de-asserted at the end of the
input thread rather than by mode_close()

May still have issues with modem_close() if DCD is still asserted (unlikely)

* Use the same help buffer for redundant configuration options
* Elimianted unused variables
* Removed "BBS" from menu options and help since this is not a BBS-only client
* TCP port is only displayed/configurable for TCP connection types
* Change "Video Mode" and "Screen Setup" to "Screen Mode" - to be consistent
* #ifdef'd out the configurable mouse actions (since they're not yet)
* Prompt for connection type when creating a new directory entry