[gtk] (8 commits) Non-fast-forward update to branch kill-containers

[Matthias Clasen <matthiasc src gnome org>]

The branch 'kill-containers' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  c90b15a... Avoid container api on grids
  08abad1... grid: Derive from GtkWidget
  9ef24e4... fixed: Add gtk_fixed_remove
  5b88e0c... Stop using container api on GtkFixed
  548044d... fixed: Derive from GtkWidget

Commits added to the branch:

  7936e76... Avoid container api on grids
  38007a3... grid: Derive from GtkWidget
  032017f... fixed: Add gtk_fixed_remove
  d583308... Stop using container api on GtkFixed
  b3562fa... fixed: Derive from GtkWidget
  cade2cb... stack: Add gtk_stack_remove
  4b90222... Stop using container api for GtkStack
  26ee582... stack: Derive from GtkWidget