fix bad genotype labels MGI * some genotype labels (with only 1 vslc) showed internal ids instead of labels. now shows proper labels * added comment for genotype nodes to include the internal key as comment.
fix bad genotype labels MGI
* some genotype labels (with only 1 vslc) showed internal ids instead of labels. now shows proper labels
* added comment for genotype nodes to include the internal key as comment.

TomConlin/dipper,monarch-initiative/dipper,monarch-initiative/dipper,TomConlin/dipper,monarch-initiative/dipper