[DOCS] add warnings about the diff b/w VEP and snpEff
Merge branch 'master' of github.com:arq5x/gemini
Add more useful error message if the database does not exist.
Merge pull request #158 from roryk/master

More useful error message for non-existant db in GeminiQuery
[ENH] support for genotype quals, ref_depths, and alt_depths.
[DOC] update docs for new gt_ref_depths, gt_alt_depths, and gt_quals columns
bump to version 0.4.0b
[DOC] add 0.4.0b to release history
Update setup.py

Require CyVCF 0.1.6
Update requirements.txt
[DOC] more details about genotype columns.
Merge branch 'master' of github.com:arq5x/gemini