[Merge] lp:~thomas-voss/net-cpp/fix-1423765 into lp:net-cpp

[Thomas Voß]

The proposal to merge lp:~thomas-voss/net-cpp/fix-1423765 into lp:net-cpp has been updated.

Commit Message changed to:

Make sure that Multi::Private instances are correctly cleaned up by only handing out weak_ptr's to it.

For more details, see:
https://code.launchpad.net/~thomas-voss/net-cpp/fix-1423765/+merge/250588
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Your team Ubuntu Phablet Team is requested to review the proposed merge of lp:~thomas-voss/net-cpp/fix-1423765 into lp:net-cpp.