upgpkg: metacity 2.34.13-7

Re-enable session management support

git-svn-id: file:///srv/repos/svn-community/svn@112669 9fca08f4-af9d-4005-b8df-a31f2cc04f65
archrelease: copy trunk to community-i686, community-x86_64

git-svn-id: file:///srv/repos/svn-community/svn@112670 9fca08f4-af9d-4005-b8df-a31f2cc04f65