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Added core.game.setRealtime(freq) function to set the engine into realtime mode, calling tick() at the given frequency
Added an example_realtime module that is an exact copy of example module but in realtime (the gameplay sucks it's not adapted)


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 * the Game:tick() method must check for savefile_pipe.saving and return true if it's true (otherwise the save will not continue in the background). Check the example module tick()


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	if savefile_pipe.saving then h = h + self.font_h self.surface:drawColorStringBlended(self.font, "#YELLOW#Saving...", 0, h, 255, 255, 255) h = h + self.font_h end
   To make a graphical display of the background saving thread.
Quitting while a save is going one will obviously still wait until it is finished


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New :cloneFull() method on all objects, this makes a perfect clone of the given object and any subjects recursively without creting duplicates of subobjects. This is nearly instantaneous and thus could be used to create time travel spells and other neat things.
Saves can now be made in the background while continuing to play the game. This obviously speeds ups considerably the gameplay since saves now "feel" instant.
*WARNING* Module makers: I had to change how savefiles work, there is a few changes needed in your modules for it to work.
 * In Game.lua: change the Savefile code in saveGame() to be just a call to savefile_pipe:push(game.save_name, "game", game)
 * In dialogs.Death too
 * Take a look at either the example module or ToME to see how it works exactly, it's really easy to convert


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Fixed Bathe in Light


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T-Engine can now auto-update itself (as long as it is not an update to the exe) (this is disabled for now, will be activated later)


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All classes now have a cloneFull() method that will clone themselves and all their subobjects without duplication


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TE4 can now handle multiple versions of the same engine (or even different ones). Engines are located in game/engines and the default one in game/engines/default
Game engines can also come in archived form in a .teae zip file


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Changed lua table.sort() function to accept any index as a second parameter, if not a function it will assume the items to sort are tables and sort them by the given index
Improved the integrated lua profiler (only works when luajit is disabled)
Greatly improved performance when moving around the map. Map:checkAllEntities() is now much faster, FOV code is also faster


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