[apparmor] [Merge] lp:~smcv/apparmor/af-gaps into lp:apparmor

[Simon McVittie]

Oh, since it was not clear from the emails sent by Launchpad: please note that I did not write (the majority of) the actual code in patches, they are by my colleague Philip Withnall, with minor modifications from me. See individual commit messages for details.
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https://code.launchpad.net/~smcv/apparmor/af-gaps/+merge/251296
Your team AppArmor Developers is requested to review the proposed merge of lp:~smcv/apparmor/af-gaps into lp:apparmor.