[Merge] lp:~phablet-team/messaging-app/async_send_message into lp:messaging-app

[Gustavo Pichorim Boiko]

The proposal to merge lp:~phablet-team/messaging-app/async_send_message into lp:messaging-app has been updated.

Description changed to:

Use the new ChatEntry from telephony-service.

This MR needs the changes from:
lp:~phablet-team/telephony-service/async_send_message

For more details, see:
https://code.launchpad.net/~phablet-team/messaging-app/async_send_message/+merge/296265
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Your team Ubuntu Phablet Team is requested to review the proposed merge of lp:~phablet-team/messaging-app/async_send_message into lp:messaging-app.