Added default coordinates to chromosome_form values, so the links to other views are not disabled when changing chromosome
Added default coordinates to chromosome_form values, so the links to other views are not disabled when changing chromosome

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