[ENH] add genotype depths and -d option to auto_rec and auto_dom
typo
[TST] add unit tests for de_novo tool.
[ENH] refactor de_novo to use common variant factory.
[DOC] update de_novo, auto_rec, and auto_dom tools.
Merge branch 'master' of github.com:arq5x/gemini
[DOC] update history.
bump to v0.6.1