[gtkmm-documentation] (7 commits) Non-fast-forward update to branch wip/dboles/make_managed-3

[Daniel Boles <dboles src gnome org>]

The branch 'wip/dboles/make_managed-3' 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:

  a98ca98... Document the new make_managed() & prefer to use it

Commits added to the branch:

  41e9f49... configure.ac: Update bug report address (*)
  2a68fab... Clarify that user sometimes must delete if managed (*)
  b556de1... Merge branch 'wip/dboles/when-manage-does-not-mean-managed- (*)
  08466ba... Link to glibmm 2.58 (*)
  c55280b... 3.22.1 (*)
  d2c7a50... Add Gtk::FileChooserNative example (*)
  3d0474b... Document the new make_managed() & prefer to use it

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