[gtk/matthiasc/for-master] (13 commits) ...docs: Expand list widget docs

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  fc823eb... Avoid recursion in gtk_css_node_ensure_style() (*)
  b4af23b... snapshot: Fix assert in inhibition (*)
  aa8a061... Merge branch 'fix-snapshot' into 'master' (*)
  f928794... Change css names of list widget (*)
  627497f... docs: Fix a parameter name mismatch (*)
  1998b67... Merge branch 'ensure-style-no-recurse' into 'master' (*)
  51c6ce1... list widgets: Document css structure (*)
  76ff1a2... gtk-demo: Drop the awards (*)
  99453e9... Merge branch 'demo-drop-awards' into 'master' (*)
  f6b6688... Merge branch 'list-widget-styles' into 'master' (*)
  1b7fb10... Merge branch 'matthiasc/for-master' into 'master' (*)
  623a563... gtk-demo: Cosmetics
  ed98564... docs: Expand list widget docs

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