meson.build: update version to 0.4.0

Author: ammen99

meson.build

@@ -2,7 +2,7 @@ project(
 	'wf-shell',
     'c',
 	'cpp',
-	version: '0.3',
+	version: '0.4.0',
 	license: 'MIT',
 	meson_version: '>=0.51.0',
 	default_options: [
@@ -17,7 +17,7 @@ wayfire        = dependency('wayfire')
 wayland_client = dependency('wayland-client')
 wayland_protos = dependency('wayland-protocols')
 gtkmm          = dependency('gtkmm-3.0')
-wfconfig       = dependency('wf-config', version: '>=0.3') #TODO fallback submodule
+wfconfig       = dependency('wf-config', version: '>=0.4.0') #TODO fallback submodule
 gtklayershell  = dependency('gtk-layer-shell-0', version: '>= 0.1', fallback: ['gtk-layer-shell', 'gtk_layer_shell_dep'])
 libpulse       = dependency('libpulse', required : get_option('pulse'))
 libgvc         = subproject('gvc', default_options: ['static=true'], required : get_option('pulse'))