/*
 * Load an Imlib2::Image from a file (no exceptions or error).
 *
 * Imlib2::Image::load_image() provides access to the low-level
 * imlib_load_image() function.  You probably want to use 
 * Imlib2::Image::load() instead of Imlib2::Image::load_image().
 *
 * Examples:
 *   image = Imlib2::Image.load_image 'sample_file.png'
 *
 */
static VALUE image_load_image(VALUE klass, VALUE filename) {