Enhanced CTorrent Code

Update to socket handling chnage.

Slight improvement for socket checking efficiency.

Fix state tracking in ctcs and tracker.

Fix state tracking in ctcs and tracker.

Fix buffer size calculation errors.

Fix buffer size calculation errors.

Delete leaked foundopt[] array.

Improve option parsing to allow overriding of config file, including negation of "-x" with "--x".

Make max buffer size variable, and improve bufio variable names.

Improve peer close debug messages.
Fix a handshake error from btstream msglen optimization.