It is now possible to batch-delete media in the "media overview" screen.
You can long press to enter multi-select mode. Then a delete button
appears on the menu bar. After pressing delete, you will get a
confirmation, and if the user confirms, the items will delete while a
progres dialog shows.
Eliminate the concept of 'Recipients' (plural). There is now just
a 'Recipient', which contains an Address that is either an individual
or a group ID.
MMS groups now exist as part of the group database, just like push
groups.
// FREEBIE
This was a holdover from Signal's origins as a pure SMS app.
It causes problems, depends on undefined device specific behavior,
and should no longer be necessary now that we have all the
information we need to E164 all numbers.
// FREEBIE