Lua binder compability changes

* A lot of changes in lua binder to compile with clang's libc++
* Add more portability to luabinder
* Remove const keyword from bound lua functions
* Deprecate std::bind usage with luabinder replace its usage with registerSingletonClass/bindSingletonFunction for binding singleton classes
* Fix a bug in lua binder where calling functions with bil object would make the client crash
* More fixes to compile with clang

src/framework/graphics/bitmapfont.cpp

@@ -160,7 +160,7 @@ void BitmapFont::calculateDrawTextCoords(CoordsBuffer& coordsBuffer, const std::
 
 const std::vector<Point>& BitmapFont::calculateGlyphsPositions(const std::string& text,
                                                          Fw::AlignmentFlag align,
-                                                         Size *textBoxSize) const
+                                                         Size *textBoxSize)
 {
     // for performance reasons we use statics vectors that are allocated on demand
     static std::vector<Point> glyphsPositions(1);