[guacamole-client/f20] (5 commits) ...Merge branch 'master' into f20

[Simone Caronni]

Summary of changes:

  d3947c7... Rebuild with udpated source tarball (*)
  c1fab62... Update linking patch (*)
  3d405c5... Tighten permissions on user-mapping.xml (*)
  9deab05... Switch to java-headless requirement (#1068116), remove syml (*)
  fb6c158... Merge branch 'master' into f20

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