-Lua cleanup and documentation migration checkpoint.

* Cleaned up some more of the Lua inteface.  Mostly replacing methods
  with properties, some consistency fixes, a few renames, some more
  exposed functionality, and a couple of properties that have no
  business being set from scripts made read-only.
* Moved a lot more Lua documentation out of source comments into the
  documentation, and expanded on it in the process.
* Got more UI code out of the input manager.
* Changed input sequence poller to a polymorphic class where you
  specify your intention upfront.
* Changed the cheat plugin to use UI Clear to clear hotkey assignments
  and leave them unchanged if the user starts assignment but doesn't
  press any switches.
* Ported AJR's fix for over-eager double-click recognition from SDL to
  Windows OSD.

-goldnpkr.cpp: Cleaned up inputs, using standard keyout and payout types
 and key assignments.

plugins/cheatfind/init.lua

@@ -302,9 +302,11 @@ function cheatfind.startplugin()
 		for tag, list in pairs(space_table) do
 			for name, space in pairs(list) do
 				local ram = {}
-				for num, entry in pairs(space.map) do
-					if entry.writetype == "ram" then
-						ram[#ram + 1] = { offset = entry.offset, size = entry.endoff - entry.offset }
+				for num, entry in pairs(space.map.entries) do
+					if entry.write.handlertype == "ram" then
+						ram[#ram + 1] = {
+							offset = entry.address_start & space.address_mask,
+							size = (entry.address_end & space.address_mask) - (entry.address_start & space.address_mask) }
 						if space.shift > 0 then
 							ram[#ram].size = ram[#ram].size >> space.shift
 						elseif space.shift < 0 then