What's Changed
* Update test_differential_pressure_flowmeters.py by chagenvik in https://github.com/equinor/pvtlib/pull/19
* Update tests by chagenvik in https://github.com/equinor/pvtlib/pull/20
* update by chagenvik in https://github.com/equinor/pvtlib/pull/22
* Bug fix vcrit vertical by chagenvik in https://github.com/equinor/pvtlib/pull/23
**Full Changelog**: https://github.com/equinor/pvtlib/compare/1.4.0...1.5.0