cache get_colours results and fix bumping for structural variants with triangle tags
cache get_colours results and fix bumping for structural variants with triangle tags

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