[IMP] survey: imp in views to enable better config of quiz mode
[MERGE] from trunk
[REF] Terminology
[IMP] Highlight the right answer in MCQ correction mode
[MERGE] from trunk
[ADD] *: replace overriden methods get_formview_action by get_formview_id

Methods to override to specify the view/action to launch for many2one links
get_formview_action use get_formview_id to find the view to open. Therefore, it is simplier to override get_formview_id to tell which view should be opened
[FIX] gamification: convert autojoin_group_id to a domain representing the list of users
[IMP] Score for each question
[FIX] forum: conversion of incorrect group to domain
[MERGE] from trunk
[FIX]modal: missing new object instanciation in dashboard
[IMP] use char_domain widget
[FIX] gamification: test needs cron to run
[FIX] gamification_sale_crm: incorrect domain
[MERGE][IMP] survey: basic usability for quiz mode

Users with Technical Featurs are now able to enable a "quiz mode" on surveys:
- questions with simple and multiple choice can be autocorrected
- an answer with positive mark is considered as correct
- users that finish a survey can see a detailed correction with correct answers and their scores
- other questions types can be manually rated by a human corrector
[MERGE] {gamification,gamification_sale_crm,website_forum}: Removing the field autojoin_group_id to replace the subscription by a domain