[gjs: 7/7] Merge branch 'gtk4' into 'master'

[Philip Chimento <pchimento src gnome org>]

commit 4c18786e162f7f83f98595f53c40dbd1f4bc1a50
Merge: 332efe2e e1197561
Author: Philip Chimento <philip chimento gmail com>
Date:   Sat Aug 17 01:20:38 2019 +0000

    Merge branch 'gtk4' into 'master'
    
    Remove GTK3 build-time dependency
    
    Closes #99
    
    See merge request GNOME/gjs!330

 .gitlab-ci.yml                |   2 +-
 Makefile.am                   |  13 ------
 configure.ac                  |  17 ++-----
 gjs-srcs.mk                   |   5 --
 libgjs-private/gjs-gtk-util.c |  64 -------------------------
 libgjs-private/gjs-gtk-util.h |  48 -------------------
 libgjs-private/gjs-util.c     | 106 ++++++++++++++++++++++++++++++++++++++++++
 libgjs-private/gjs-util.h     |   6 +++
 modules/overrides/Gtk.js      |   2 +-
 win32/config-msvc.mak         |  21 ---------
 10 files changed, 118 insertions(+), 166 deletions(-)
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