render remain items count on AppView, refs #1
specs for Todos#remain(), refs #1
implement Todos#remain(), refs #1
Add specs for listening todos reset event
Add  handler, refs #1
Add specs for fetch parameter, refs #1
delegate rendering of ListView to AppView, refs #1
Add specs for event(refs #1)
implement  event, refs #1
update remain count, refs #1
remain count style, closes #1