Rdmo

* Fix missing translations

* Add rdmo plugins
Plugins can be used to customize or extend specific actions in RDMO using custom Python code outside of the centrally maintained code base. This is useful to introduce actions which are specific to a certain RDMO instance. With the possibility to add code to RDMO comes the danger of introducing additional bugs and security issues. Please be extra careful when using this **advanced** feature.

There already is an [rdmo-plugins repository](https://github.com/rdmorganiser/rdmo-plugins) providing additional im- and export formats. It contains datacite, madmp and radar data formats. Please look into the [plugins documentation](https://rdmo.readthedocs.io/en/latest/configuration/plugins.html) to find out how to make use of it.


Steps to upgrade:

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

This release fixes a change in the data model in RDMO 1.6. The id attribute of question set collections is now explicit, therefore the attribute needs to be changed in the XML files as well:


project/datacite -> project/datacite/id
project/funder -> project/funder/id
project/partner -> project/partner/id

* Fix a bug with project pagination.

Steps to upgrade:

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

* Add Multi-Site-Feature which allows to run multiple different RDMO frontpages in a single instance. Please look into the [multi site section](https://rdmo.readthedocs.io/en/latest/configuration/multisite.html?highlight=multi) of our documentation for further information
* Add French translation to RDMO's locale. Please note that the RDMO question catalog, the options and a few other texts are also available in French and can be pulled from [rdmo catalog](https://github.com/rdmorganiser/rdmo-catalog). A tutorial about how to handle RDMO's language settings can be found [here](https://rdmo.readthedocs.io/en/latest/configuration/general.html?highlight=language#general-settings)
* User Interface Improvements especially on the projects overview page
* Improve and simplify handling of templates that exist in multiple translations
* Add an url to display terms of use
* Several minor bug fixes

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

* Add possibility to do calculations in views
In [rdmo catalog](https://github.com/rdmorganiser/rdmo-catalog) is a new view availabe which is an example of how to calculate and display a project's costs. You can find it [here](https://github.com/rdmorganiser/rdmo-catalog/blob/master/rdmorganiser/views/rdmo.xml#L612).
Please have a look into our docs for [more information](https://rdmo.readthedocs.io/en/latest/management/views.html#calculations).

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

This release fixes a bug that prevented the installation of version 1.0.4.
For more information about changes and updates please look into previous release notes.

* Fix vendor file download

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