Added models and handler skeleton
Added js, templates, bla-bla
Fixed adding new in roster
Added gradebook js
Added some model and handler code
Fixed assigment adding
Changes in gradebook.js
Fixed grade js + view. Has got a model bug
Added remove assigment
hanged main and gradebook.js
Added saveAll, fixed setting id on editing
Added SaveAll method
dded readonly attribute
Removed stub data