[rygel] (44 commits) Non-fast-forward update to branch wip/acl

[Jens Georg <jensgeorg src gnome org>]

The branch 'wip/acl' 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:

  b9bf48f... media-export: Clarify message
  327b7c8... rygel: Add initial ACL support

Commits added to the branch:

  fdaef58... data: Make the GstLaunch pipelines in rygel.conf work with  (*)
  b74ff42... Assamese translation updated (*)
  a2a90d7... Updated Ukrainian translation (*)
  93cc069... Add support for pretty hostnames (*)
  b78f934... Updated Norwegian bokmål translation (*)
  1f7483f... media-export: Clarify message (*)
  58c3ba9... renderer-gst: Return null in error case (*)
  dde6f86... renderer-gst: Use contract programming (*)
  2b05ad8... Updated Spanish translation (*)
  eb6a22f... Updated Czech translation (*)
  541ecf2... Updated Brazilian Portuguese translation (*)
  7d850a2... Updated Lithuanian translation (*)
  7cddbea... [l10n] Updated Italian translation. (*)
  120bc24... Updated Hungarian translation (*)
  73dfc83... Updated Slovenian translation (*)
  bd1c1f6... build: Support building with tracker-1.0 (*)
  843849e... Updated Galician translations (*)
  b3018f6... Updated Galician translations (*)
  f827acd... Updated Norwegian bokmål translation (*)
  a4ffde7... Updated Korean translation (*)
  9690002... Prepare 0.21.5 (*)
  280c845... Updated Latvian translation (*)
  1acb320... Updated Chinese (China) translation (*)
  0989936... Updated Traditional Chinese translation(Hong Kong and Taiwa (*)
  b7a6fd0... Updated Russian translation (*)
  9d2158e... Updated Polish translation (*)
  42760e4... renderer-gst: Fix two criticals on startup (*)
  0f73d13... Updated Ukrainian translation (*)
  7253502... Updated French translation (*)
  6e2b4e4... Finnish translation update by Jiri Grönroos (*)
  e10e532... Updated Indonesian translation (*)
  fdd2dc1... build: Replace another cp -d (*)
  4dc8d49... Prepare 0.21.6 (*)
  cd821a3... [l10n] Add Catalan translation (*)
  3375c9e... Updated Portuguese translation (*)
  3794eec... Updated Serbian translation (*)
  a00b362... renderer: Fix URI handling (*)
  0b2f763... Updated Danish translation (*)
  1854896... core: Don't spam debug log (*)
  0684a11... Updated Basque language (*)
  30c9da3... Updated Basque language (*)
  7158b54... Updated Danish translatoin (*)
  0348afc... l10n: Update Japanese translation (*)
  8951946... rygel: Add initial ACL support

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