Factored out assembly versions so we can override in eg-web-common - ENSWEB-4916
Factored out assembly versions so we can override in eg-web-common - ENSWEB-4916

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