database change (add calculated_qualities)

...taskdatabase/migrations/0027_task_calculated_qualities.py

...atabase/migrations/0028_remove_task_calculated_quality.py

atdb/taskdatabase/models.py

atdb/taskdatabase/serializers.py

atdb/taskdatabase/services/algorithms.py

atdb/taskdatabase/templates/taskdatabase/index.html

.../taskdatabase/templates/taskdatabase/quality/headers.html

atdb/taskdatabase/templates/taskdatabase/quality/tasks.html

atdb/taskdatabase/templates/taskdatabase/tasks.html

...skdatabase/templates/taskdatabase/validation/headers.html

...taskdatabase/templates/taskdatabase/validation/tasks.html

atdb/taskdatabase/views.py