Stop using the id() function for unique identifiers throughout the code-base #413
Description
Because the id() is only unique for the lifetime of an object there can be inconsistency between the ID of event handlers presently live in the client the the ids of event handlers presently live in the server. For example, an event handler may get thrown away, and a new one created (with the same id()) and, before the view has been updated, an event is fired from the old handler. Thus, the old button triggers a new event.