Change versions to minimum requirements

Makefile

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

rugby-score-store.c

@@ -71,7 +71,6 @@ rugby_score_store_class_init (RugbyScoreStoreClass *klass)
 	obj_class->get_property = rugby_score_store_get_property;
 	obj_class->set_property = rugby_score_store_set_property;
 
-
 	pspecs[PROP_SCORE] = g_param_spec_int ("score", "Score", "The score",
 	                                       0, 150, 0,
 	                                       G_PARAM_READWRITE);