Tags::register_question_tag()

	public function register_question_tag() {
		ap_add_default_options(
			array(
				'max_tags'      => 5,
				'min_tags'      => 1,
				'tags_per_page' => 20,
				'tag_page_slug' => 'tag',
			)
		);

		$tag_labels = array(
			'name'               => __( 'Question Tags', 'anspress-question-answer' ),
			'singular_name'      => __( 'Tag', 'anspress-question-answer' ),
			'all_items'          => __( 'All Tags', 'anspress-question-answer' ),
			'add_new_item'       => __( 'Add New Tag', 'anspress-question-answer' ),
			'edit_item'          => __( 'Edit Tag', 'anspress-question-answer' ),
			'new_item'           => __( 'New Tag', 'anspress-question-answer' ),
			'view_item'          => __( 'View Tag', 'anspress-question-answer' ),
			'search_items'       => __( 'Search Tag', 'anspress-question-answer' ),
			'not_found'          => __( 'Nothing Found', 'anspress-question-answer' ),
			'not_found_in_trash' => __( 'Nothing found in Trash', 'anspress-question-answer' ),
			'parent_item_colon'  => '',
		);

		/**
		 * FILTER: ap_question_tag_labels
		 * Filter ic called before registering question_tag taxonomy
		 */
		$tag_labels = apply_filters( 'ap_question_tag_labels', $tag_labels );
		$tag_args   = array(
			'hierarchical' => true,
			'labels'       => $tag_labels,
			'rewrite'      => false,
		);

		/**
		 * FILTER: ap_question_tag_args
		 * Filter ic called before registering question_tag taxonomy
		 */
		$tag_args = apply_filters( 'ap_question_tag_args', $tag_args );

		/**
		 * Now let WordPress know about our taxonomy
		 */
		register_taxonomy( 'question_tag', array( 'question' ), $tag_args );
	}