Nelio external image fix for Rehub theme

gistfile1.txt

function get_post_thumb(){
	global $post ;
	if ( has_post_thumbnail($post->ID) ){
		$image_url = get_post_meta( $post->ID, _nelioefi_url(), true );
	if ( !$image_url || strlen( $image_url ) == 0 )
		return false;
	return $image_url;
	}
}