enable mutationMenu for all mutationVector datasets, and only enable MuPIT submenu for hg19 datasets.
enable mutationMenu for all mutationVector datasets, and only enable MuPIT submenu for hg19 datasets.

ucscXena/ucsc-xena-client,acthp/ucsc-xena-client,acthp/ucsc-xena-client,acthp/ucsc-xena-client,ucscXena/ucsc-xena-client,ucscXena/ucsc-xena-client,ucscXena/ucsc-xena-client,ucscXena/ucsc-xena-client