[gnome-mud] Bump gtk+ requirement to 3.22

[Mart Raudsepp <mraudsepp src gnome org>]

commit efb146d89e32bc4a76db983832e6c8779aafadf5
Author: Mart Raudsepp <leio gentoo org>
Date:   Sun Jan 6 13:21:11 2019 +0200

    Bump gtk+ requirement to 3.22
    
    GtkScrolledWindow:max-content-height and :propagate-natural-height
    are used in mud-window-view.ui, which are new in 3.22; if those
    properties don't work due to older gtk+, the input box wouldn't
    really work correct at all with the new approach for gtk3.

 meson.build           | 2 +-
 src/mud-input-view.ui | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/meson.build b/meson.build
index d9063dc..77ea644 100644
--- a/meson.build
+++ b/meson.build
@@ -25,7 +25,7 @@ localedir = join_paths(datadir, 'locale')
 schemadir = join_paths(datadir, 'glib-2.0', 'schemas')
 
 libgio_dep = dependency('gio-2.0', version: '>= 2.48')
-libgtk_dep = dependency('gtk+-3.0', version: '>= 3.16')
+libgtk_dep = dependency('gtk+-3.0', version: '>= 3.22')
 libvte_dep = dependency('vte-2.91', version: '>= 0.37')
 libpcre_dep = dependency('libpcre', version: '>= 6.0.0')
 libgst_dep = dependency('gstreamer-1.0', version: '>= 1.0', required: get_option('gstreamer'))
diff --git a/src/mud-input-view.ui b/src/mud-input-view.ui
index 869ad04..d851ac8 100644
--- a/src/mud-input-view.ui
+++ b/src/mud-input-view.ui
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
-  <!-- interface-requires gtk+ 3.14 -->
+  <!-- interface-requires gtk+ 3.22 -->
   <template class="MudInputView" parent="GtkStack">
     <property name="visible">true</property>
     <property name="homogeneous">false</property>