[INTERNAL] BamIO: tags
[FIX] cleaned up bam_tags_dict.h a bit
[FIX] 2nd cleanup of bam_tags_dict.h
[FIX] removed Windows warnings
[DOC] dox updated
[FIX] added test for appendTagValue(), revised bam_tags_dict.h demo, fixed dox and extractTagValue()
[FIX] fixed snp_store
Merge pull request #233 from weese/feature/bam_io_tags

[FIX] cleaned bam_io_tags.h