switch col-located variants to use ids for simple look up
switch col-located variants to use ids for simple look up

buske/schemas,hjellinek/schemas,sarahhunt/schemas,diekhans/ga4gh-schemas,dglazer/schemas,laserson/schemas,sarahhunt/schemas,nlwashington/schemas,macieksmuga/schemas,dnanexus-rnd/schemas,nlwashington/schemas,buske/schemas,lh3/schemas,dnanexus-rnd/schemas,adamnovak/schemas,benedictpaten/schemas,heuermh/ga4gh-schemas,ga4gh/ga4gh-schemas,saupchurch/schemas,Jeltje/ga4gh-schemas,pcingola/schemas,dcolligan/schemas,ga4gh/schemas,lh3/schemas,diekhans/ga4gh-schemas,Jeltje/ga4gh-schemas,adamnovak/schemas,hjellinek/jeltje-schemas-sphinx,benedictpaten/schemas,hjellinek/schemas,laserson/schemas