* adds more log details on adding/removing documents
* fixes bug in admin backend where restoring of non-compensation entries led to an error
* fixes bug where deleting of revocation without an attached file would lead to an error
* adds log details for adding/removing of compensations for intervention
* adds handy restore-deleted function for admin backend for alls BaseObject derivatives
* adds/updates translations
* adds support for payment adding/deleting to intervention log
* adds support for deduction adding/deleting to intervention/ecoaccount log
* improves code snippets
* drops add_deduction() methods for ecoaccount and intervention in favor of simpler creation in NewDeductionModalForm
* adds messages
* adds/updates translations
* removes admin backend views which are not important for production
* adds filtering functionalities on index views
* simplifies detail views on intervention, compensation, ecoaccount and ema
* adds autocomplete fields on detail views
* adds handy horizontal filter fields on detail views
* extends the detail view templates for all compensation related models to render extra CompensationState details as well
* reduces number of landing page news from 4 to 3
* improves .card-text in favor of .scroll-150
* improves .card font size
* adds support for DELETE method for all relevant objects
* improves get_obj_from_db functionality
* drops custom compensation logic for get_obj_from_db due to improvement of base method
* writes test for sharing using the API
* fixes bug on frontend form where an exception occured on generating a new API token if no token existed, yet
* adds permission constraint (default group) for using the api in general
* fixes default-group-only behaviour for sharing-API, so users can only add new users and not removing them, as long as they do not have any other group membership like registration or conservation office
* changes 'ksptoken' to 'Ksptoken' to match CGI standard for http header keys
* adds support for POST of new compensations
* adds shared_users property to BaseObject and Compensation to simplify fetching of shared users (Compensation inherits from intervention)
* extends compensation admin index
* modifies compensation manager which led to invisibility of deleted entries in the admin backend
* fixes bug in sanitize_db.py where CREATED useractions would be removed if they are not found on any log but still are used on the .created attribute of the objects
* adds new app to project
* adds relation between User model and new APIUserToken model
* adds first implementation for GET of intervention
* adds basic code layout for future extension by having new versions
* adds abstract is_ready_for_publish method to PublishableObjectMixin which needs to be implemented in subclasses
* adds implementation for intervention model
* adds publishable check to rendering report view
* adds/updates translations
* adds tab titles for compensations
* adds/updates translations
* optimizes identifier generating, so that one-digit months will be converted into two digits
* extends KonovaSSOClient for providing support of propagated user data from sso-server. For longterm, we hope to have this feature directly on django-simple-sso. Further details can be found here: https://github.com/divio/django-simple-sso/issues/67
* adds workaround in case of received WFS exception -> routine waits 1 second and tries to rerun for another time. If this does fail as well, the routine will end without a result
* adds mailto shortcut to contact button in footer for a quick fix
* adds mail sending if shared data is deleted
* adds/updates translations
* refactors recording mails into separate email template folder email/recording
* moves mail sending to celery worker using shared_task in konova/tasks.py
* adds mail sending for shared access given
* adds UserNotification settings checks for mail sending
* adds/updates translations
