Merge pull request #5 from ThibHlln/release-v0.2.2

Release v0.2.2

changes version in version.py

corrects mistake in docstring run_all_steps

updates version and readme

updates version number and readme file

updates version number

corrects bug due to compression in obs file

forgot to remove the compression for the observed flow file which raises a RuntimeError: NetCDF: Invalid argument in parallel computing

updates setup.py for next version

updates setup.py for next version

updates version history in readme file