Support for built-in servers

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

@@ -3,6 +3,7 @@ package io.anuke.mindustry;
 import io.anuke.arc.Application.*;
 import io.anuke.arc.*;
 import io.anuke.arc.assets.*;
+import io.anuke.arc.collection.*;
 import io.anuke.arc.files.*;
 import io.anuke.arc.graphics.*;
 import io.anuke.arc.scene.ui.layout.*;
@@ -43,6 +44,8 @@ public class Vars implements Loadable{
     public static final String discordURL = "https://discord.gg/mindustry";
     /** URL for sending crash reports to */
     public static final String crashReportURL = "http://mins.us.to/report";
+    /** list of built-in servers.*/
+    public static final Array<String> defaultServers = Array.with(/*"mins.us.to"*/);
     /** maximum distance between mine and core that supports automatic transferring */
     public static final float mineTransferRange = 220f;
     /** team of the player by default */