Order the address book by date #57
Description
Describe the bug
Right now, the address book is returned (by calling the filteraddresses RPC) either unsorted, or sorted by label. When the user generates a new address, this address is therefore not the first in the list of displayed addresses on the "Receive" page, so the user has to scroll through the entire address book to find it and copy it (e.g. to receive a payment).
Expected behavior
When the user presses the New address button, the newly generated address replaces the previous one on the page, so the user can immediately copy it to clipboard or scan the associated QR code.