Implement contig-to-RefSeq translation, refactor SequenceDictionary with RefSeq information (and without numeric IDs) and prepare ADAMGenotype for incorporating reference model information.
Further implement reference model in variant conversion and address comments in PR re: incorporation of RefSeq IDs into SequenceDictioanry
Further address comments in PR re: incorporation of RefSeq IDs into SequenceDictioanry
Rebase work onto master
Merge pull request #243 from massie/pr238

Rebase PR#238 onto master
Adding ADAMContig back to ADAMVariant.
Merge pull request #245 from fnothaft/variant-avdl

Adding ADAMContig back to ADAMVariant.
Making sample ID field in genotype nullable.
Merge pull request #246 from fnothaft/genotype-fix-sample-id

Making sample ID field in genotype nullable.
fix for issue244; fragments were incorrect order and only took first fragment off of a sequence
Merge pull request #247 from hammerlab/issue-244

For #244, Fragments were incorrect order and incomplete
CHANGES.md is updated at release instead of per pull request