Make it easier for Handler to get species URL name
Make it easier for Handler to get species URL name

ENSEMBL_SPECIES_URL_MAP is saved at start-up time to prevent response handler from spending time in  caluclating it each time

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