Update to Minecraft 1.14

By: md_5 <git@md-5.net>

paper-server/nms-patches/PropertyManager.patch

@@ -8,7 +8,7 @@
 +
  public abstract class PropertyManager<T extends PropertyManager<T>> {
  
-     private static final Logger a = LogManager.getLogger();
+     private static final Logger LOGGER = LogManager.getLogger();
      public final Properties properties;
 +    // CraftBukkit start
 +    private OptionSet options = null;