avoid to create all transfer lines when create a new transfer
Merge branch 'current' of https://github.com/marketboomer/nunchaku into current-john
add is_empty js method and made some change to make table editable cell more flexible
Merge branch 'current' of https://github.com/marketboomer/nunchaku into current-john

Conflicts:
	app/decorators/nunchaku/table_decorator.rb
make editable cell to have the correct id and name
avoid to use unless
made some changes after code review
Merge pull request #105 from marketboomer/current-john

Refactor transfer to create or update transfer item on the fly