Added use of select to receive_thread to solve possible dead-lock during uploads.
Moved periodic transfer progress reports to occur even when no data is transferring.
Changed all byte value printfs to unsigned and all sockets to signed.

If resuming transfer, offset is now shown in progress reports.

Beautified getkey() a little.

getkey() releases time-slices when called with node offline or input_thread not running (just in case).

Eliminated exception in send_thread() when shut-down during transfer
by no-longer dereferencing ctrl_thread pointer if shut-down in progress.

Added NT-compatible work-around (using ShellExecute) for old default LoginCommand ("start telnet://localhost").

This should fix the problem in the QNET-FTP module timing-out waiting for the BBS to create the QWK packet.

Reduce the frequency of time-slice yields (to ever 50 messages) during packing.

Added read/write to registry for log/list and font colors.

Move text/relay.can to ctrl/relay.cfg.

Removed unused cap_fname property.