1.6.1

• Add: NBPC_Register_Rest_Route supports WP_REST_Controller subclassing. (#103)
• Add: 'admin-ajax.php', 'admin-post.php' autobind feature. (#104)
• Add: NBPC_Register_Base_Shortcode::find_shortcode() also stores shortcode atts, enclosed texts. (#105)
• Mod: Resolve issue #100.