Improved shuffle command for dedicated server

core/assets/version.properties

@@ -1,7 +1,7 @@
 #Autogenerated file. Do not modify.
-#Sat Feb 10 12:37:44 EST 2018
+#Sat Feb 10 12:55:55 EST 2018
 version=beta
-androidBuildCode=153
+androidBuildCode=155
 name=Mindustry
 code=3.3
 build=custom build

core/src/io/anuke/mindustry/io/Maps.java

@@ -38,6 +38,14 @@ public class Maps implements Disposable{
 		return defaultMaps;
 	}
 
+	public Array<Map> getCustomMaps(){
+		array.clear();
+		for(Map map : list()){
+			if(map.custom) array.add(map);
+		}
+		return array;
+	}
+
 	public Array<Map> getAllMaps(){
 		array.clear();
 		for(Map map : list()){