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/game/widgets/uiminiwindowcontainer.lua

@@ -0,0 +1,12 @@
+UIMiniWindowContainer = extends(UIWidget)
+
+function UIMiniWindowContainer.create()
+  local container = UIMiniWindowContainer.internalCreate()
+  container:setFocusable(false)
+  container:setPhantom(true)
+  return container
+end
+
+function UIMiniWindowContainer:getClassName()
+  return 'UIMiniWindowContainer'
+end