[Merge] lp:~mdeslaur/upstart/apparmor-support into lp:upstart

[Marc Deslauriers]

Review: Resubmit

Excellent comment. I've added the requested test, and it uncovered a bug with deserialisation, which I've fixed also. Thanks!
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https://code.launchpad.net/~mdeslaur/upstart/apparmor-support/+merge/164169
Your team Upstart Reviewers is requested to review the proposed merge of lp:~mdeslaur/upstart/apparmor-support into lp:upstart.