v0.2.0 (Ensemble 109)

Merge pull request #23 from stephenturner/grch3738

Use https in host, fix GRCh37 vs 38

Ensembl 90

Updated annotations to Ensembl version 90

http://www.ensembl.info/blog/2017/08/22/ensembl-90-has-been-released/

v0.1.1

add transcripts-to-gene for m38 and h38 fixes #2