[Merge] lp:~phablet-team/messaging-framework/last-minute-fixes into lp:messaging-framework

[Tiago Salem Herrmann]

Review: Approve

there was only one bug leading to a crash when using broadcast chats, but it is now fixed.
thanks.
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https://code.launchpad.net/~phablet-team/messaging-framework/last-minute-fixes/+merge/308008
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