[gtk/tests-cleanup] (29 commits) ...tests: Drop testcolorchooser2

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  a37dc29... paned: Drop the Private struct (*)
  b230ea2... paned: Don't ignore the type attribute (*)
  a4debec... Merge branch 'tests-cleanup' into 'master' (*)
  9c13bf7... Merge branch 'matthiasc/for-master' into 'master' (*)
  c66f2ca... x11: Avoid a critical in clipboard data transfer (*)
  8d9a3de... Merge branch 'matthiasc/for-master' into 'master' (*)
  aedc956... renderboder: Ignore transparent outlines (*)
  ef2af52... widget: Remove size allocate signal enum member (*)
  167c611... widget: Move adjusted size calculation below early-out goto (*)
  949eb8d... node-editor: Monitor file and reload on changes (*)
  b9ed957... gl renderer: Fix nested rounded clip rendering (*)
  f78c167... cssvalue: Add class check to transition (*)
  9e0bf35... paned: Fix up the docs once more (*)
  fcbc972... print-editor: Fix crash (*)
  fede7cd... gtk-demo: Fix expander demo (*)
  a02c588... gtk-demo: InfoBar is not a GtkBox anymore (*)
  8a7fb4b... widget: Make 1 if out of 2 ifs (*)
  ddaf50d... window: Create constraint solver on demand (*)
  a50bf27... main: Inline propagate_{down,up} in propagate_internal() (*)
  9149c79... window: Restructure gtk_window_destroy() (*)
  8dfdd68... Merge branch 'print-editor-new-crash' into 'master' (*)
  10813dd... Merge branch 'gtk-demo-expander-fix' into 'master' (*)
  ab148c0... Merge branch 'wip/baedert/for-master' into 'master' (*)
  fa784aa... Cosmetics (*)
  aae0770... scale: Make the area around the trough clickable (*)
  deef018... tests: Drop testtoolbar2
  252df6d... tests: Drop testpixbuf-scale
  82290f7... tests: Drop testicontheme
  5e6d6d2... tests: Drop testcolorchooser2

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