allows get selected references for a specific model
removes old todo
allows calling methods in the model instances
removes white line
removes the waypoints removal, because they are triggered just once
removes the infinite grid controller and its heavy cpu arrange algorithm
prevents value errors when serializing deleted model instances
makes the object serialising process deleted object proof
fixes the waypoints
the item controller tries to read the value of the field
reads and sets values from text and values
refactors the spine helpers to improve the error handlig
adds warning for deprecated options
fixes comment
removes the conditional declaration for Spine Helpers
fixes stupid name not defined bug
prevents that the @el has a .control-groups
forces new instance when a form is saved
serializes objects pks not registered with api handlers
removes the monkeypatch for Array from underscore js