* src/widgets/modest-header-view-render.c:
* Added some implementation work to retrieve the send status of
mails in outbox. get_status_string() obtains the proper string
for a status, get_status_of_uid() should retrieve the current
status trying in all send queues, the cell renderer has a
specific path for the case of outbox.
* As currently it does not get the proper status from the
send queue, we set always "waiting".
* src/widgets/modest-header-view-priv.h:
* Added an enum of the types of compact cell renderer.
* src/widgets/modest-header-view.c:
* Pass the proper mode to the compact cell renderer (incoming,
outgoing, outbox).
pmo-trunk-r2502