gtk: add translation support (v5)
This includes a de_DE translation from Kevin Wolf and an it translation fromPaolo Bonzini.
Cc: Paolo Bonzini <pbonzini@redhat.com>Cc: Kevin Wolf <kwolf@redhat.com>Cc: Stefan Hajnoczi <stefanha@redhat.com>Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>...