Fix bug with deleting entities

[mikestone14]

Entities are not being removed from state when the DESTROY_SUCCESS action is dispatched.

• The reducer handles DESTROY_SUCCESS by replacing they values in data with the current values without the ID of the entity that was destroy. This happens here.

• The helper method entitiesExceptID treats the action's payload.data as an ID.

• When the DESTROY_SUCCESS action is dispatched, it received the response from the API as the argument here. This response is then "normalized" and becomes the action's payload.data here. This means that the data will not be the ID of the element that was removed, causing the bug.