Version 0.2.1

Integrate landuse availability calculator, see release notes for all changes

Version 0.2.0

Major release with new features and breaking changes, see release notes.

Bugfix release v0.0.3

Brings a minor bug fix and prepares for the next version jump to version 0.2.

• Fix heat demand hourshift for xarray 0.15.1
• Add Travis CI and simplified release management