[Merge] lp:~unity-api-team/process-cpp/apparmor-exec into lp:process-cpp

[Michal Hruby]

Review: Approve

LGTM, this will allow us to call for example aa_change_profile().
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https://code.launchpad.net/~unity-api-team/process-cpp/apparmor-exec/+merge/220452
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