Rdmo

Changes:

* Fix some issued with ORCID login. New entries were added to `local.py` to allow for more flexible authentication workflows:
* `SOCIALACCOUNT_SIGNUP` is set to `False` by default. Change into `True` to enable users to create an account via social accounts, e.g. ORCID.
* `SOCIALACCOUNT_AUTO_SIGNUP` is set to `False` by default. Set it to `True` to enable automatic creation of an account when using a social account for the first time. Otherwise new users need to fill out a signup form even if the provider does provide the email address. This should be `False` when using the public ORCID API, but can be set to `True` when you are sure that an email is provided by the OAuth provider. For more details please look into [read the docs](https://rdmo.readthedocs.io/en/latest/configuration/authentication/allauth.html#social-accounts).
* Fix vendor files update process
* Fix order of sets in views
* Sort question catalogs alphabetically in right side menu
* Fix minor issues regarding colours and wording

Steps to upgrade:
* `pip install --upgrade rdmo`
* `python manage.py deploy`

Changes:
* Fix options export
* Refactor all tests to use pytest
* Update vendor files
* Improve API by adding a few filter options


Steps to upgrade:
* `pip install --upgrade rdmo`
* `python manage.py download_vendor_files`
* `python manage.py collectstatic`
* `python manage.py deploy`

You may need to restart your web server to make it deliver the updated static files.

Fixes:
* Pin requirement to compatible versions

Steps to upgrade:
* `pip install --upgrade rdmo`
* `python manage.py deploy`

First major release: This version of the repository is stable and in use over a long time now and is tested with RDMO 1.5.5.

Fixes:
* Fix installation procedure

Steps to upgrade:
* `pip install --upgrade rdmo`
* `python manage.py deploy`

Features:
* Add api for memberships
* Refactor remove from project function, members can remove themselves now

Changes:
* Make prefix obligatory to avoid import problems
* Fix url concenation problems
* Fix swagger by removing obsolete renderer
* Update developer docs

Steps to upgrade:
* `pip install --upgrade rdmo`
* `python manage.py deploy`