[WIP]
Merge branch 'master' of github.com:GAKUEngine/gaku into refactor_student_selection
[spec/feature] use initalizer in selection service
[spec/service] use initializer
[routes] added routs from imex engine
[service] student selection service refactor
[controller] use selection service with initalizer
Merge branch 'master' of github.com:GAKUEngine/gaku into refactor_student_selection
[spec/controllers] fix student selection spec
[service] style fix
[concerns] fix
[fixes] enrollments
[fixes] #2
[fixes] #3
[fix] #3
Merge pull request #337 from GAKUEngine/refactor_student_selection

Refactor student selection