claimview edittoolbar definition: Register all events by default

Instead of attaching the "destroy" and "change" event handlers dynamically when triggering edit
mode on the toolbar, the handlers are attached directly when creating the toolbar.
The events have been missing when a toolbar was created being in edit mode already (instantly adding
a completely new value).

Change-Id: I83545b508860a3a7791dd34aa06796293dcbcd78
Merge "claimview edittoolbar definition: Register all events by default"