inclass-quiz-answer.wf

- new teacher-paced inclass quiz

- support for different shuffling options (never, always, per-user)

- support for subsections (single and multiple choice, short text questsion)

- support for answer hints for short text questions (single word, multiple words, ...)

- new API for question and answers for student-paced and

teacher-paced scenarios using on the following objects

* renaming_form_loader

- answer_attributes

- answer_for_form

- answers_for_form

- form_name_based_attribute_stem

- get_form_object

- rename_attributes

* question_manager

- goto_page

- more_ahead

- current_question_form

- current_question_obj

- current_question_name

- current_question_title

- nth_question_obj

- nth_question_form

- combined_question_form

- question_objs

- question_names

- question_property

* answer_manager

- create_workflow

- delete_all_answer_data

- get_answer_wf

- get_wf_instances

- get_answers

- marked_results

- answers_panel

- special policies for workflows, defined as per-workflow policies.

- improved i18n

- improved styling