WinCom version 1.20: Feb, 2001

ChangeLog:
    1.  Configure non-default serial port settings: DTR/RTS/DSR/CTS/Timeout
    2.  Add readable callback (similar to 'fileevent chan readable') for serial ports
        (Tcl8.03: fileevent does not work for serial ports under Win32)

06/Jan/1999:
    Added -maxblock option, causing the event loop to check for fileevents.
        (Problem: no filevents, when mouse cursor was outside the application).

29/Jun/1999:
    Tcl8.06/8.1 Stubs support
        Now WinCom should run on future Tcl version without recompilation
    Added new function: wincom::handle

30/Jun/1999:
    Added new config options:
        -sysbuffer -xonoff -xchar -xlimit

xx/Sep/1999:
    Added wincom::lasterror, returning the Win32 error: ClearCommError()

24/Sep/1999: Version 1.0
    Added Tcl_PkgProvide

24/Nov/1999: Version 1.1
    Removed the fileevent stuff, because the Tcl-core supports it well
    ( wincom::readable, wincom::lasterror, wincom::config -maxblock )
    - Tcl 8.2 has working serial filevents
    - Tcl 8.3 adds fconfigure -lasterror
    - wincom::(readable,lasterror) now obsolete, may confuse users

26/May/2000: Version 1.11
    Added wincom::config -break

01/Feb/2001: Version 1.20
    Added wincom::modemstatus