Treat # as line comment

[w0rm]

Couldn't test this though

[shuhei]

Sorry, I rebased glsl-parser and now my commits in this branch are outdated... Can you rebase it?

[w0rm]

@shuhei I added support for #, and it seems to work!

vertexShader : Shader Vertex Uniforms { vcolor : Vec3 }
vertexShader =
    [glsl|
        #extension GL_OES_standard_derivatives : enable
        #ifdef VERTEX
        float a = 0.0;
        #endif
        attribute vec3 position;
        attribute vec3 color;
        uniform mat4 perspective;
        varying vec3 vcolor;

        void main () {
            gl_Position = perspective * vec4(position, 1.0);
            vcolor = color;
        }

    |]