Merge pull request #14 from AngelFP/feature/lazy_matplotlib

Lazy import matplotlib

Bump version

Merge pull request #8 from AngelFP/update_actions

Update actions

Merge pull request #7 from ax3l/update-openPMD-api

openPMD-api: Support 0.15.*

Merge pull request #6 from AngelFP/improve_astra_saving

Improve species checks in ASTRA saver

Merge pull request #5 from AngelFP/support_more_species

New implementation of particle distributions

Change openPMD reader defaults (#4)

* Make `species_name` optional in openPMD reader

* Increase version number

* Add method to list species in openPMD file

* Add method to list species in openpmd file

Increase version number

Fix formatting problems

Increase version number