[apparmor] [Merge] ~talkless/apparmor-profiles:fix-thunderbird-attachements into apparmor-profiles:master

[Simon Déziel]

@Vincas, I just noticed that you added simon123 as reviewer. Despite the similarity in name it is not me as I go by the LP ID sdeziel.
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https://code.launchpad.net/~talkless/apparmor-profiles/+git/apparmor-profiles/+merge/332870
Your team AppArmor Developers is requested to review the proposed merge of ~talkless/apparmor-profiles:fix-thunderbird-attachements into apparmor-profiles:master.