1. Performance improvement.
2. Added question editing via ajax.
3. Added question translation via ajax.
4. Added multilangual question management in admin panel.
5. Added improved way of adding new question.
6. Added improved way of deleting question.
7. Few fixes in index page and scoreboard.
8. Fixed: score management / auto delete of inactive users' data.
9. Fixed problem with selecting an option for answer when adding a new question.