add jquery-ui-rails gem
add jquery datepicker; add jquery datetime picker addon
simple_form input for datetime picker
add ability: dean can read student
dean::students controller for students autocomplete
add datetime picker js
students autocomplete for misses
create and update student misses
add some miss localization
students miss list on index
fix input class for students autocomplete
miss scope for missing_type
education department lecturers misses crud