Restrict genome builds and aligners to currently available choices on command line. chapmanb/bcbio-nextgen#241
Restrict genome builds and aligners to currently available choices on command line. chapmanb/bcbio-nextgen#241

brainstorm/bcbio-nextgen-vm,chapmanb/bcbio-nextgen-vm,alexandrucoman/bcbio-nextgen-vm,fw1121/bcbio-nextgen-vm,guillermo-carrasco/bcbio-nextgen-vm,chapmanb/bcbio-nextgen-vm,fw1121/bcbio-nextgen-vm,guillermo-carrasco/bcbio-nextgen-vm,alexandrucoman/bcbio-nextgen-vm,brainstorm/bcbio-nextgen-vm