Fix admin/student_changes
Add saving of destroy actions for admin/changes
[controller specs] fix some failures in admissions controller spec
[spec/controllers] Fix admin/enrollment_statuses_controller_spec
Merge branch 'develop' of https://github.com/tapalilov/GAKUEngine into develop
Merge branch 'develop' of https://github.com/martakostova/GAKUEngine into develop
Clean models
Create ExtracurricularActivity and ExtracurricularActivityEnrollment models and links
WIP : Basic extracurricular_activities views
WIP: extracurricular_activities view changes and added request spec
WIP : Refactor extraccuricular_activity_enrollments and student_chooser
WIP: Refactor class_group_enrollments
WIP : Refactor course_enrollments
Include StudentChooserController module
Add decent_exposure gem
Merge branch 'refactor_enrollments' of git://github.com/kalkov/GAKUEngine into develop
add validation for uniqness applicant_number, phase_id, method_id