Riizade/config file (#520)

* added POJO + yaml file

* made config members public

* switched to yaml

* modified files to use YamlConfig over ServerConstants

* removed constants from ServerConstants

* removed unused imports

* removed unused import

* removed world ini

* removed now unused .ini files

* fixed docker-launch.sh

* added jackson dependency JARs

* fixed errors

* removed unused server config values, added world defaults

* don't use env variables for docker

* fixed package imports/specifiers for js files

src/net/server/world/MapleParty.java

@@ -23,6 +23,7 @@ package net.server.world;
 
 import client.MapleCharacter;
 import client.MapleClient;
+import config.YamlConfig;
 import constants.ServerConstants;
 import java.util.Collection;
 import java.util.Collections;
@@ -344,7 +345,7 @@ public class MapleParty {
     public static boolean createParty(MapleCharacter player, boolean silentCheck) {
         MapleParty party = player.getParty();
         if (party == null) {
-            if (player.getLevel() < 10 && !ServerConstants.USE_PARTY_FOR_STARTERS) {
+            if (player.getLevel() < 10 && !YamlConfig.config.server.USE_PARTY_FOR_STARTERS) {
                 player.announce(MaplePacketCreator.partyStatusMessage(10));
                 return false;
             } else if (player.getAriantColiseum() != null) {