message: Made UniformStorage implement Copy/Clone
diff: @@ -11,6 +11,7 @@ impl Uniforms for EmptyUniforms {
  }
  /// Stores uniforms.
  +#[derive(Copy, Clone)]
  pub struct UniformsStorage<'n, T, R> where T: AsUniformValue, R: Uniforms {
  name: &'n str,
  value: T,
  