Emulator

Made this a while back, decided to submit it (revision number is just where
I created the patch file from, and I've updated it).

Adds functionality to PadSimple:

• Adjustable partial press for the main stick, C-stick, and triggers
  (separate keys + adjustable values for semi-L, semi-R, semi-main, semi-C)

• Escape key to clear a keybinding (especially useful now)

• A whole bunch of cleanuppy/consistency stuff.

• Tested on:

• XP:
  http://img40.imageshack.us/i/dolphinadjustablehalfpr.png/

• Ubuntu (note the button text bug):
  http://img38.imageshack.us/i/dolphinadjustablehalfpr.png/

• I would have tested it on Mac OS but I couldn't get it to compile in
  September and I'm too busy to do it right now.

• I don't know how to fix that GNOME button text thing; I don't have enough
  experience with WX to figure out what is setting the button widths to what
  they are.

• If there's a more WX-y way to do the int-to-string conversion than
  sstream, that would be good.

• The ratios for pushing control sticks diagonally with semi-press on are
  fudged--I figured it should be sqrt(2) but that didn't work, and I did some
  testing to find a good point (doesn't scale properly as the semi values are
  adjusted, but it works pretty well. Would be cool if someone that knew how
  it actually works could fix it.

P.S. Don't mind my odd keybindings :P
P.P.S. Sorry about the long post and all the uncertainties :D