Merging postreleasefix/84 to release/84
Merging postreleasefix/84 to release/84

* postreleasefix/84:
  Add style mappings for BAM and CRAM, and defaults for other formats

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