Test Tweaks

- add ensembl endpoint
- update google endpoint
- comment out v0.1 tests until we code up some kind of version picker
- assert that variant.calls.genotype is an int[] (vs a string[])


I noticed also that the tests are a little too weak right now. Both Google and Ensembl are scoring a bit higher than they should, because both have typos in their field names. I'll try and come up with a solution for this in a followup PR.