Merge pull request #1 from vovando/core-framework

Core framework Symfony
Merge pull request #3 from vovando/manager-user

Layout and User manager Admin
Merge pull request #4 from vovando/manage-subject

Manager Subject admin
Merge pull request #5 from vovando/manage-exams

Manager Examinations
Merge pull request #6 from vovando/manage-question

Manage Question
Merge pull request #7 from vovando/user-answer

Manage user answer examination
Merge pull request #8 from vovando/manage-answer

Manage answer Examination
User create answer sheet