Include exons of length 1 at the boundary

lib/EnsEMBL/REST/Model/Overlap.pm

@@ -239,7 +239,7 @@ sub exon {
   my @exons;
   foreach my $transcript (@$transcripts) {
     foreach my $exon (@{ $transcript->get_all_ExonTranscripts}) {
-      if (($slice->start < $exon->seq_region_start && $exon->seq_region_start < $slice->end) || ($slice->start < $exon->seq_region_end && $exon->seq_region_end < $slice->end) ||($slice->start >= $exon->seq_region_start && $slice->end <= $exon->seq_region_end) ) {
+      if (($slice->start <= $exon->seq_region_start && $exon->seq_region_start < $slice->end) || ($slice->start < $exon->seq_region_end && $exon->seq_region_end <= $slice->end) ||($slice->start >= $exon->seq_region_start && $slice->end <= $exon->seq_region_end) ) {
         push (@exons, $exon);
       }
     }