ioquake3 renderer opengl2 shader and .mtr files

Just a couple of notes in relation to the use of .mtr files for shaders for materials when using ioquake3's new opengl2 renderer. If putting a .mtr file in the scripts directory will mean that a .shader file with the same name will be ignored. Therefore if using a .mtr file you will need to copy all shaders in the shader file of the same name that you want to be used into the new material (.mtr) file.