Move to newest GTK+

Makefile

 CFLAGS = -Wall `pkg-config --cflags gtk+-3.0`
-CPPFLAGS = -DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_32 -DGDK_VERSION_MIN_REQUIRED=GDK_VERSION_3_4
-CPPFLAGS += -DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_32 -DGDK_VERSION_MAX_ALLOWED=GDK_VERSION_3_4
+CPPFLAGS = -DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_36 -DGDK_VERSION_MIN_REQUIRED=GDK_VERSION_3_8
+CPPFLAGS += -DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_36 -DGDK_VERSION_MAX_ALLOWED=GDK_VERSION_3_8
 LDLIBS = `pkg-config --libs gtk+-3.0`
 
 all: rugby

rugby-application.c

@@ -301,8 +301,6 @@ rugby_application_init (RugbyApplication *app)
 RugbyApplication *
 rugby_application_new (void)
 {
-	g_type_init ();
-
 	g_set_application_name ("Rugby");
 
 	return g_object_new (RUGBY_TYPE_APPLICATION,