Rework storage models to store chromosomes under Specimen
Revert to Fasta naming as fasta files might not always be a chromosome.
Add name field to specimen
Fasta import should now sort under a Specimen
Request handler should now conform to new database structure
Fix specimen to not need genome length, and get_or_create will set all required fields
Merge branch 'master' of https://github.com/josiahseaman/skittle
Merge branch 'master' of https://github.com/josiahseaman/skittle