PyPSA-Eur-Sec Version 0.6.0

Full release notes:
https://pypsa-eur-sec.readthedocs.io/en/latest/release_notes.html#pypsa-eur-sec-0-6-0-4-october-2021

What's Changed

• Fix error in plot_summary when running without the industry sector by @leonsn in #96
• add EU oil bus already when adding land transport to be able to run t… by @lisazeyen in #100
• Add costs for biogas upgrading by @fneum in #126
• retro: fix renaming u_values subsectors and btype by @fneum in #127
• Revision complete by @fneum in #139
• add home battery storage and inverter costs by @lisazeyen in #99
• Cherry-pick from #137 by @fneum in #142
• Sensitivity e nom max by @martavp in #143
• Spatial management for solid biomass (transport) by @fneum in #152
• Omitting unnecessary constraints on the CHP units by @leonsn in #155
• Exogenous transition path for shipping, Steel, and Aluminum production by @martavp in #136
• Adapt to technology-data changes by @fneum in #146
• add H2 liquefaction cost to H2 shipping demand by @fneum in #145
• xarray 0.19 compatibility by @fneum in #158
• Add lifetime to solar-rooftop by @martavp in #162
• Update plot_network.py by @martavp in #160
• fix-build_carbon_budget by @martavp in #161
• Change PyPSA-Eur-Sec licence from copyleft GPLv3 to more liberal MIT by @fneum in #164
• Small fixes by @lisazeyen in #167
• Add CO2 network by @fneum in #148
• Biomass transport by @lisazeyen in #73
• Separate basic chemicals into HVC, chlorine, methanol and ammonia by @nworbmot in #166
• spatially-explicit biomass potentials from ENSPRESO by @fneum in #151
• Include today's district heating share for myopic optimisation by @lisazeyen in #149
• Myopic while different clustering for the generators and the network by @martavp in #144
• Add agriculture, forestry and fishing by @fneum in #147
• Preparation of release v0.6 by @fneum in #174

Full Changelog: v0.5.0...v0.6.0