• changed the debugger window layout so that there is a larger window with only two tabs; also more information is displayed, and the mouse wheel can be used for scrolling the disassembly and memory dump views
• implemented Lua scripting in the debugger; this makes it possible to write complex rules for breakpoints, but can have other uses as well, since the script can read and write memory, I/O ports, and CPU registers, in addition to having access to the standard Lua library functions
• added a simple monitor to the debugger; the supported commands include assemble, disassemble, trace, memory and I/O port dump and modify, printing and changing CPU registers, memory compare, copy, fill, search, load and save, and more (use ? to print the list of available commands, or ? N for help on command N)
• improved the audio quality of AVI recording, at the expense of making it somewhat slower
• added new command line option for selecting the GUI style and colors
• a few minor bug fixes and improvements

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