Add draper
Rename all model decorators to injectors
WIP: Remove presenters
Merge branch 'master' into draper
[decorators] Add person_decorator and make student_decorator inherit from person_decorator
[views/shared] Fix _person_show_table
[gem] Use gaku_forms 0.1.3
[decorators] Add teacher_decorator
Delete presenters
Remove presenter leftovers
Merge pull request #202 from Genshin/draper

Draper