[yelp] (14 commits) ...Merge commit 'origin/master'

[Shaun McCance <shaunm src gnome org>]

Summary of changes:

  01131df... Adding mal2html.xsl (*)
  567cb68... Adding stubs for Mallard support (*)
  752f2f8... Very basic display of Mallard index page (*)
  2b4f426... Implemented cache for Mallard documents (*)
  54fed8c... Putting links in Mallard cache and making sure cache isn't  (*)
  0c1fd98... [yelp-settings.c] Fixed long-standing color issues (*)
  bb5d485... [mal2html.xsl.in] Styling the link trails (*)
  42fd63e... [yelp-mallard.c] Fixed info titles in cache document (*)
  acaffb0... [yelp-window.c] Hacky temporary solution to handle links to (*)
  a457402... [yelp-settings.c] Adjusted colors: brighter and lighter (*)
  9921dcd... Changing Mallard namespace to projectmallard.org
  721e495... Added yelp-mallard.c to POTFILES.in
  26d1028... Version 2.27.1, now with more ducks
  13127b3... Merge commit 'origin/master'

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