[gtk] (15 commits) Non-fast-forward update to branch wip/baedert/for-master

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/for-master' 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:

  aa601d9... menu: Stop implementing destroy()
  b4811f3... statusbar: Stop implementing destroy()
  abcca19... modelbutton: Stop implementing destroy()
  6ba0dfb... viewport: Stop implementing destroy()
  0358371... notebook: Stop implementing destroy()
  a6e8cec... menuitem: Stop implementing destroy()
  80f8bf0... actionbar: Stop implementing destroy()
  3ec9d9a... container: Stop implementing destroy()
  d44de1e... filechooserbutton: Stop implementing destroy()
  e75a192... window: Stop implementing destroy()
  f83fae2... placesview: Stop implementing destroy()
  3e9f6ac... textview: Stop implementing destroy()
  79cb93c... assistant: Stop implemeting destroy()
  4b46a19... shortcutssection: Stop implementing destroy()
  f61a502... filechooserbutton: Only destroy existing native dialogs
  921dd49... Fixup! Merge into menu destroy commit
  c9e6e47... Fixup! Merge into scrolledwindow destroy commit

Commits added to the branch:

  b40ed4a... statusbar: Stop implementing destroy()
  96bf82a... modelbutton: Stop implementing destroy()
  c46e153... viewport: Stop implementing destroy()
  f6482b9... notebook: Stop implementing destroy()
  0521bf8... menuitem: Stop implementing destroy()
  c528a27... actionbar: Stop implementing destroy()
  d0eafc4... container: Stop implementing destroy()
  af2be89... filechooserbutton: Stop implementing destroy()
  1b4d536... window: Stop implementing destroy()
  bac2345... placesview: Stop implementing destroy()
  f319158... textview: Stop implementing destroy()
  e06f643... assistant: Stop implemeting destroy()
  64599c0... shortcutssection: Stop implementing destroy()
  4878354... filechooserbutton: Only destroy existing native dialogs
  04e0e2c... Fixup! Merge into scrolledwindow destroy commit