Color: (bugfix) Color4ub(Color4f(-1,-1,-1,-1)) should be black and not white; some new methods.
Color: (bugfix) Color4ub(Color4f(-1,-1,-1,-1)) should be black and not white; some new methods.

- r(), r(value), g(), g(value), b(), b(value), a(), and a(value) methods added.
- Color4f.abs() added.
- Color4f internally uses an std::array.

PADrend/Util