BEAWARE all game functionality is disabled with this commit for a while

* rework client modules
* hide main window when loading
* remake top menu functions
* rework modules autoload
* improve path resolving for otml and lua
* move core_widgets to core_lib
* fix tooltip issues
* split some styles
* add bit32 lua library
* fix assert issues
* fix compilation on linux 32 systems
* rework gcc compile options
* renable and fix some warnings
* remove unused constants
* speedup sprite cache
* move UIGame to lua (not funcional yet)
* fix a lot of issues in x11 window
* fix crash handler
* add some warnings do uiwidget
and much more...

modules/core_lib/widgets/uiprogressbar.lua

@@ -0,0 +1,31 @@
+UIProgressBar = extends(UIWidget)
+
+function UIProgressBar.create()
+  local progressbar = UIProgressBar.internalCreate()
+  progressbar:setFocusable(false)
+  progressbar:setPhantom(true)
+  progressbar.m_percent = 0
+  progressbar:updateBackground()
+  return progressbar
+end
+
+function UIProgressBar:setPercent(percent)
+  self.m_percent = math.max(math.min(percent, 100), 0)
+  self:updateBackground()
+end
+
+
+function UIProgressBar:getPercent()
+  return self.m_percent
+end
+
+function UIProgressBar:updateBackground()
+  local width = math.max((self.m_percent * self:getWidth())/100, 1)
+  local height = self:getHeight()
+  self:setBackgroundSize({width=width, height=height})
+end
+
+
+function UIProgressBar:onGeometryChange(oldRect, newRect)
+  self:updateBackground()
+end