BKBTL emulator test bench.

The BKBTL project consists of:

• bkbtl -- Win32 version, for Windows 2000/XP/Vista/7.
• bkbtl-qt is Qt based BKBTL branch, works under Windows, Linux and Mac OS X.
• bkbtl-testbench -- test bench for regression testing.
• bkbtl-doc -- documentation and screenshots.