[gnome-boxes/f19] (4 commits) ...Merge branch 'master' into f19

[Christophe Fergeau]

Summary of changes:

  d868467... Only build Boxes on x86/x86_64 (*)
  589778a... Only Requires: libvirt-daemon-kvm on arch that have it (*)
  4536587... Boxes 3.8.2-3 (*)
  254983a... Merge branch 'master' into f19

(*) This commit already existed in another branch; no separate mail sent