* 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 API to support serializing and deserializing of action_details and biotope_details
* renames biotope_extra_types into biotope_type_details on CompensationState model for convenience reasons and to match CompensationAction's action_type_details
