restore some game functionallity

* i'm gradually restoring game functionality with the new modules design, though still a lot to do
* you can reload all scripts and modules using Ctrl+R shortcut while playing (finally! this is the reason of all this rework)
* a bunch of fixes, but new regression too :P
* fix performance issue that could lead freezes in the client in older machines
* completely new game module with new design
* fix crashs in map render
* remove uigame.cpp (now every game input is via lua)
* enable DEBUG macro by default, with it you are able to view any possible lua leak while running

modules/client_background/background.lua

@@ -11,7 +11,10 @@ function Background.init()
   local clientVersionLabel = background:getChildById('clientVersionLabel')
   clientVersionLabel:setText('OTClient ' .. g_app.getVersion() .. '\n' ..
                              'Built on ' .. g_app.getBuildDate())
-  Effects.fadeIn(clientVersionLabel, 1500)
+
+  if not g_game.isOnline() then
+    Effects.fadeIn(clientVersionLabel, 1500)
+  end
 
   connect(g_game, { onGameStart = Background.hide })
   connect(g_game, { onGameEnd = Background.show })