[factories] exam sessions and join between students
[models] exam sessions and associations
[migration] add exam sessions and time format preset
[spec/model] exam sessions and associations
add time format
[exam sessions] split exams index to tabs and add exam sessions
[controller] load exam sessions in exam index
[spec/feature] check exams tab count
[spec/feature] exam sessions spec
[locale] exam sessions
[controller] exam sessionsa
[sample] add time format for preset
[routes] exam sessions
[js] load datetimepicker in exam sessions edit
adding bootstrap-datetimepicker-for-rails gem
Merge branch 'master' of github.com:Genshin/gaku into exam_sessions
[locale] add timeformat label and missing locale select
[spec/feature] time format locale
[locale] time format
Merge pull request #291 from Genshin/exam_sessions

Exam sessions