Add Time class, it can be convert into to_f
add Clock Class, its used for time measuring
add Font class, its used for Text
add Text class, with this you can draw strings
add Shader class, with that you can use GPU programs for drawing
add RenderState, with this you can customize the drawing
add Mouse module, currently only with position
add std::size_t wrapper
add RenderState to RenderTarget#draw
add RubyImplmentation of sf::Drawable
add MousePosition for Window and block form to poll_event
add Sprite#initialize that use an Hash
add Text to Transformable and use Hash in Transformable#initialize
add Vertex#initialize that takes a hash
add the new classes to the main Init
fixes some things in the Map test (the position is not negative as i
thought)
add New Layers to the test map
add examples/shader  its a Copy of the Shader example from SFML