[yelp] (40 commits) ...Version 3.17.3

[David King <davidk src gnome org>]

Summary of changes:

  65d2f05... yelp-document: Make document-uri property a YelpUri (*)
  0aa0f7a... yelp-document: Add yelp_document_lookup_document_uri() (*)
  24d9acf... yelp-document: Use xref: uris for search results (*)
  42fed52... yelp-document: Return HTML mime type insted of NULL for sea (*)
  1302228... yelp-uri: Use 'index' as default page for help: uris when r (*)
  963662f... autotools: Adapt autotools for using WebKit2 (*)
  3f6aa81... yelp: Change headers files to use WebKit2 (*)
  9bae912... yelp-view: Replace "navigation-policy-decision-requested" s (*)
  ccd9465... yelp-view: Replace "script-alert" signal by "script-dialog" (*)
  f3fc43e... yelp-view: Rename WKWebSettings to WKSettings and adapt pro (*)
  e36d442... yelp-view: Implement view_print_action using WebKit2 API (*)
  daa674c... yelp-view: Use WKFindController instead of deprecated searc (*)
  6f2d5aa... yelp-view: Replace "populate-popup" signal by "context-menu (*)
  3598be8... yelp-view: Implement web extension to deal with DOM tree (*)
  04683e8... yelp-view: Implement pages load in WebKit2 (*)
  7a2f5fc... yelp-test: Port Yelp tests to WebKit2 (*)
  901b4fb... yelp-view: Implement web extension to load resources (*)
  97a8968... yelp-window: Remove ScrolledWindow to hold WebView. (*)
  eba92d9... Install libyelpcommon to pkglibdir (*)
  068e779... Fix API documentation build (*)
  5cf83b9... Convert font size from points to pixels (*)
  3d3beb9... Do not free a GError with g_object_unref() (*)
  e815d48... Force libyelpcommon to be installed before libyelp (*)
  7b4690c... yelp-view: Do not block/unlock policy decision callback (*)
  1045888... yelp-view: Fix runtime warning on close (*)
  89833ec... yelp-uri-builder: build_network_uri should receive a const  (*)
  9ecf34c... libyelp: Fix help-list page (*)
  76210eb... yelp-uri-builder: Fix ghelp documents (*)
  c032d38... web-extension: Fix external resources of ghelp documents (*)
  f72cb79... yelp-view: Remove the GtkAdjustment handling code (*)
  139eebc... yelp-view: Remove duplicated code (*)
  83abdc8... yelp-uri-builder: Handle info uris (*)
  dd6782b... libyelp: fix runtime critical warning at startup when loadi (*)
  f98d8b5... yelp-uri: Set docuri and fulluri also when resolving an inf (*)
  5a41c5b... yelp-uri-builder: Handle man uris (*)
  73b47e2... yelp-uri: Set docuri and fulluri also when resolving a man  (*)
  db4c528... yelp-window: Fix loading cursor inconsistencies (*)
  c4add31... Fix scroll position when navigating back/fordward (*)
  b479f66... YelpWindow: In Unity, use the header bar as a toolbar
  3c404f1... Version 3.17.3

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