check/genotype.pm
 snp_call_set (set of loci) separated from sequenom_plex (the genotype data), since snp_call_set may be the same for multiple data sets.
 The genotype result object derives its snp_call_set from the check object instead of indirectly from the bam_genotype attribute.
 Both sequenom_plex and snp_call_set are passed to the bam_genotype object at instantiation

utils/bam_genotype.pm
 removed unused json_genotype->{snp_set} - snp set information comes from the pos_snpname_map_filename attribute

find_gt_match.c
 moved printing of header information lower to use data_id from static data header

gt_pack.c
 add new flag to allow specification of data set label in header
Release 56.11
added comments for norm_fit changes (separate pull request)
Merge pull request #37 from dozy/sequenom_fluidigm_gt_data

Sequenom fluidigm gt data