frontend/todo: add img statics
frontend/todo: add jst templates and main backend template
backend/views: add todo view
frontend/todo: add css
frontend/todo: add TodoModel
frontend/todo: add TodoCollection
frontend/todo: add TodoView
frontend/todo: add Router
frontend/todo: add main view - AppView
frontend: add a readme.md to the todo app
frontend/todo: add main app.coffee
todo: register all coffee assets