[Merge] lp:~tiagosh/messaging-app/dual-sim2 into lp:messaging-app

[Tiago Salem Herrmann]

The tests failed because this MR needs changes in the history-service and telephony-service, as explained in the MR description. If you check the logs you will see that the app is not even running correctly because the new proxy model is inexistent. Also, I probably forgot to run the tests manually (only tested the functionalities on the device) and ended up breaking the test. My bad! I will fix this still today. Thank for the report.

About tests for dual sim, I believe we need to add some, but the current infrastructure (with-ofono-phonesim script) does not support this setup yet.

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https://code.launchpad.net/~tiagosh/messaging-app/dual-sim2/+merge/226906
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