snes9x1.43-re-recording r27 - 模擬器

http://code.google.com/p/snes9x143-rerecording/

r27
boundary check in gui.drawpixel()
r26
Added a few of Lua GUI APIs (gui.fillbox, gui.drawcircle,
gui.fillcircle). Fixed a mess typo in r25 :/
r25
Fixed gui.drawline() (yeah... that was terrible :/)
r24
Added lua reload function, drag&drop support, keyboard shortcuts.
Screenshot saves Lua graphics and other displays except generic text message
(aka InfoString).
r23
Fixed multi-player input of Lua joypad.

--