* French to English punctuation.
* Pong and Shader use fixed-sized windows now (especially on tiling
window managers, the windows will be resized automatically, thus
making the examples look and also behave weirdly).
- Removed the internal classes sf::Renderer and sf::Matrix3
- Split sf::Drawable into sf::Drawable and sf::Transformable
- Added sf::Transform
- Added sf::Vertex
- Added sf::VertexArray
- Types of shapes are now handled with their own derived class
- Modified the Pong example