brca_annotate_maf doesn't work as expected

[jyu2012]

query_brca_exchange works as expected and returned three additional fields, however, brca_annotate_maf returned all 3 fields with NA values. guess the parsing function of annot field returned from query_brca_exchange does not work properly.

also query_brca_exchange checked start position, end, ref and alt. It seems too stringent as i can see a few insertion/deletion variants had annotation missing. The reason is the standard to set start and end for insertion or deletion is not well established. It might be better to check either start or end, plus ref and alt. Thanks!