Hide table if there are no interspecies alignments in this region
Adding 'height_wrap' class as needed by JS
Only list self-alignments with haplotypes/patches

Since Compara now has in the same dataset human self-alignments for
chromosomes, unplaced contigs, and haplotypes, we cannot rely simply
on the method_link_type (previously != "ucsc").
Instead, we need to select the alignment blocks that contain a non-primary
region (is_reference=0)