Merge new document API view with the document list API view (as a POST action). Move search result filtering to clases module, this way it filters results from the API too.
Update django rest framework version
Don't search blindly for all the fields passed in the advanced search, use the defined fields, avoid hard coded rejection of &page arguments in the query string. The SearchModel class is now responsible for storing the search in the recent entries instead of the view.
Merge branch 'feature/api_fixes' into development