AppArmor upstream planning

Feedback jdstrand: only listed priority 'high' or where items were already assigned. Other items will be in the upstream roadmap (https://apparmor.wiki.kernel.org/index.php/DevelopmentRoadmap) and work items (https://apparmor.wiki.kernel.org/index.php/WorkItems)

Feedback jjohansen: Fix parser caching to respect changes to includes got stalled on some other cleanups and didn't make feature freeze. It will be included in the next release once the necessary cleanups to do it right are merged in.

Work items:
[jjohansen] change_profile pam_apparmor: POSTPONED
[jdstrand] clean up wiki documentation: DONE
[jdstrand] merge gobby notes into roadmap, and work items on upstream wiki: DONE
[jdstrand] update techdoc: POSTPONED
[jdstrand] update man pages (LP: #592159): POSTPONED
[sbeattie] find a release manager -- sbeattie will do it himself: DONE
[sbeattie] clarify development policies: DONE
[kees] create devel mailing list: DONE
[sbeattie] release 2.5/2.5.1 officially: DONE
[kees] clean-up audit parsing: DONE
[kees] fix python library bindings: POSTPONED
[jjohansen] Investigate dfa alternatives (d2fa, hfa, h-cfa, xfa, ..): DONE
[jjohansen] features directory: POSTPONED
[jjohansen] investigate mediation of btrfs snapshots (LP: #484786): POSTPONED
[jjohansen] Fix parser caching to respect changes to includes: DONE
[jjohansen] reintroduce exec time revalidation and evaluate exec overhead:POSTPONED