-simplify plugin, remove unnecessary header, make internal plugin functions static, doxygen, indentation, code simplification

git-svn-id: https://gnunet.org/svn/gnunet@33650 140774ce-b5e7-0310-ab8b-a85725594a96
peerstore: minor fixes


git-svn-id: https://gnunet.org/svn/gnunet@33651 140774ce-b5e7-0310-ab8b-a85725594a96