Portfolyo

What's Changed
* Merge pull request 35 from rwijtvliet/develop by rwijtvliet in https://github.com/rwijtvliet/portfolyo/pull/36
* patch bpo calculations by rwijtvliet in https://github.com/rwijtvliet/portfolyo/pull/37
* patch bpo duration by rwijtvliet in https://github.com/rwijtvliet/portfolyo/pull/39


**Full Changelog**: https://github.com/rwijtvliet/portfolyo/compare/v0.4.4...v0.4.5

What's Changed
* No restrictions on numpy version by rwijtvliet in https://github.com/rwijtvliet/portfolyo/pull/32
* Patch start of gasday in prices
* Patch start of gasday in delivery period


**Full Changelog**: https://github.com/rwijtvliet/portfolyo/compare/v0.4.3...v0.4.4

What's Changed
* refactoring and bugfix by rwijtvliet in https://github.com/rwijtvliet/portfolyo/pull/30

**Full Changelog**: https://github.com/rwijtvliet/portfolyo/compare/v0.4.2...v0.4.3

What's Changed
* Hotfix: arithmatic with off-midnight start-of-day by rwijtvliet in https://github.com/rwijtvliet/portfolyo/pull/27

**Full Changelog**: https://github.com/rwijtvliet/portfolyo/compare/v0.4.0...v0.4.2

What's Changed
* Publish new version by rwijtvliet in https://github.com/rwijtvliet/portfolyo/pull/21
* new (breaking) release with refactored tools by rwijtvliet in https://github.com/rwijtvliet/portfolyo/pull/25


**Full Changelog**: https://github.com/rwijtvliet/portfolyo/compare/v0.3.5...v0.4.1

What's Changed
* Publish new version by rwijtvliet in https://github.com/rwijtvliet/portfolyo/pull/21
* new (breaking) release with refactored tools by rwijtvliet in https://github.com/rwijtvliet/portfolyo/pull/25


**Full Changelog**: https://github.com/rwijtvliet/portfolyo/compare/v0.3.5...v0.4.0