Merging postreleasefix/83 to master
Merging postreleasefix/83 to master

* postreleasefix/83:
  Map UCSC 'dense' style to transcript_nolabel, because ungrouped style is buggy

Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode