Update cpt-bootstrap-carousel.php

Well Tallhill, here is my pull request, in the CODE I "highlight" with this: --- CHANGED

I make this changes to show or hidden caption box in determinate slide. I make this query to change class if taxonomy is 'sem-texto' (without text in portuguese)

--------- Custom Query

		$filtro_args = array(
				'post_type' => 'cptbc',
				'tax_query' => array(
					array(
						'taxonomy' => 'carousel_category',
						'field' => 'slug',
						'terms' => 'sem-texto'
					),
				),
			);
		$filtro_query = new wp_query($filtro_args);
		if($filtro_query->have_posts()){
			$filtro_query->the_post();

			$marcado = get_the_id();
			//echo $marcado;
			$esconde = 'hidden';
			//echo $esconde;
		}

Well thats it... wait yours observations... 
Hugs from Brazil...