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_textmessage/textmessage.otui

@@ -0,0 +1,15 @@
+CenterLabel < GameLabel
+  font: verdana-11px-rounded
+  height: 64
+  text-align: center
+  anchors.centerIn: parent
+  size: 360 264
+
+BottomLabel < GameLabel
+  font: verdana-11px-rounded
+  height: 16
+  text-align: center
+  margin-bottom: 2
+  anchors.bottom: parent.bottom
+  anchors.left: parent.left
+  anchors.right: parent.right