move gmap build to the end and switch to 2017-11-15 version (#1246)
move gmap build to the end and switch to 2017-11-15 version (#1246)


chanzuckerberg/idseq-web,chanzuckerberg/idseq-web,chanzuckerberg/idseq-web,chanzuckerberg/idseq-web,chanzuckerberg/idseq-web