Open-variant

What's Changed
- fix error in iterating path when using `groupby` function 12
- fix error when a file doesn't have an expected columns 14
- minor fixes and updates

Changelog
- https://github.com/bbglab/openvariant/compare/v0.7.5-alpha...v0.7.6-alpha

What's Changed
* build(deps): bump mistune from 0.8.4 to 2.0.3 by dependabot in https://github.com/bbglab/openvariant/pull/10
* build(deps): bump mistune from 0.8.4 to 2.0.3 in /docs by dependabot in https://github.com/bbglab/openvariant/pull/9

New Contributors
* dependabot made their first contribution in https://github.com/bbglab/openvariant/pull/10

**Full Changelog**: https://github.com/bbglab/openvariant/compare/v0.6.15-alpha...v0.7.5-alpha

**Full Changelog**: https://github.com/bbglab/openvariant/compare/v0.6.14-alpha...v0.6.15-alpha

**Full Changelog**: https://github.com/bbglab/openvariant/compare/v0.6.13-alpha...v0.6.14-alpha

**Full Changelog**: https://github.com/bbglab/openvariant/compare/v0.6.11-alpha...v0.6.13-alpha

**Full Changelog**: https://github.com/bbglab/openvariant/compare/v0.6.5-alpha...v0.6.11-alpha