Retriever v3.0.0

v3.0.0

Major changes

Add provenance support to the Data Retriever
Use utf-8 as default
Move scripts from Retriever to retriever-recipes repository
Adapt google code style and add linters, use yapf. Test linters
Extend CSV field size limit
Improve output when connection is not made
Add version to the interface
Prompt user if a newer version of script is available
Add all the recipes datasets
Add test for installation of committed dataset
Add function to commit dataset

Minor changes

Improve "argcomplete-command"
Add NUMFOCUS logo in README