[gupnp] (4 commits) Non-fast-forward update to branch wip/24

[Jens Georg <jensgeorg src gnome org>]

The branch 'wip/24' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  26e8488... service: Validate host header
  5971d68... Tests: Add test for host header validation

Commits added to the branch:

  1024bb9... linux-cm: Fds can be 0 (*)
  a00f1ca... Update .gitignore (*)
  1a00dce... service: Validate host header
  bf6f47e... Tests: Add test for host header validation

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