[epiphany] (18 commits) ...encoding-dialog: Stop using position child property

[Marge Bot <marge-bot src gnome org>]

Summary of changes:

  806e770... resources: Stop using GtkBox child properties (*)
  563b03a... Unify gtk_box_pack_*() arguments (*)
  0ce65d4... nautilus-floating-bar: Trim down (*)
  3eb165c... fullscreen-box: Add 'content' property (*)
  73f1ba8... fullscreen-box: Stop handling internal child in add_child() (*)
  379c1d8... web-view: Fix a leak in open_response_cb() (*)
  1dd87ef... resources: Stop using GtkWidget:expand (*)
  9c389ed... encoding-dialog: Port to GtkBox (*)
  f763e80... encoding-row: Port to GtkBox (*)
  9f74f11... Clean up [hv]align and [hv]expand use (*)
  51d4ca0... Stop using GtkButton:relief (*)
  babcf27... Stop using shadow-type on GtkFrame and GtkScrolledWindow (*)
  2b117ff... Stop using GtkContainer:border-width (*)
  691f3ef... resources: Stop using GtkWidget:margin-left (*)
  a25d194... Stop using GtkWidget:margin (*)
  78a9bd0... resources: Stop overriding GtkDialog action area (*)
  592ac8f... action-bar-end: Replace GtkButtonBox with GtkBox (*)
  cbbc8dd... encoding-dialog: Stop using position child property (*)

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