Revised plans for CBTT.

I've decided to drop the boost::asio plan for CBTT, and will use libevent instead, once I figure out the differences and proper porting procedures.

Hopefully, any socket-related issues will be gone after the rewrite (assuming there actually are any currently).

It may actually fix the issues we're having with the tracker links.

Update for GCC 4.x

A fix for GCC 4.x has been made for CBTT this week.

Subversion revision 24 from http://svn.depthstrike.com has the update.

This is a low-priority update.