upgpkg: virtualbox 4.3.20-2

- fix FS#43098
- fix FS#43035


git-svn-id: file:///srv/repos/svn-community/svn@123865 9fca08f4-af9d-4005-b8df-a31f2cc04f65
archrelease: copy trunk to community-testing-i686, community-testing-x86_64

git-svn-id: file:///srv/repos/svn-community/svn@123866 9fca08f4-af9d-4005-b8df-a31f2cc04f65