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_console/channelswindow.otui

@@ -0,0 +1,56 @@
+ChannelListLabel < Label
+  font: verdana-11px-monochrome
+  background-color: alpha
+  text-offset: 2 0
+  focusable: true
+
+  $focus:
+    background-color: #ffffff22
+    color: #ffffff
+
+MainWindow
+  id: channelsWindow
+  text: Channels
+  size: 250 238
+  @onEscape: self:destroy()
+
+  TextList
+    id: channelList
+    anchors.fill: parent
+    anchors.bottom: next.top
+    margin-bottom: 10
+    padding: 1
+    focusable: false
+
+  Label
+    id: openPrivateChannelWithLabel
+    text: Open a private message channel:
+    anchors.left: parent.left
+    anchors.right: parent.right
+    anchors.bottom: next.top
+    text-align: center
+    margin-bottom: 2
+
+  LineEdit
+    id: openPrivateChannelWith
+    anchors.left: parent.left
+    anchors.right: parent.right
+    anchors.bottom: next.top
+    margin-bottom: 10
+
+  Button
+    id: buttonOpen
+    text: Open
+    width: 64
+    anchors.right: next.left
+    anchors.bottom: parent.bottom
+    margin-right: 10
+    @onClick: self:getParent():onEnter()
+
+  Button
+    id: buttonCancel
+    text: Cancel
+    width: 64
+    anchors.right: parent.right
+    anchors.bottom: parent.bottom
+    @onClick: self:getParent():destroy()