Fixed missing newline in /connect usage message

Fixed some warning on MSVC

Added support for alt+backspace, which removes the previous word

Improved the color handling a tad

Fixed: sending a message from earlier history did not flush to a new input line, instead just up a single level in history

ZFC's own messages are now printed in blue to distinguish them from messages from the server.

Need to `#include <stdlib.h>` in basics.h or md5.cpp doesn't compile under Linux/Clang

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mercurial