Add ignores

SpigotCore_Main/src/de/steamwar/core/ErrorHandler.java

@@ -142,6 +142,8 @@ public class ErrorHandler extends Handler {
         startsWith.add("Ignoring plugin channel");
         startsWith.add("Ignoring incoming plugin");
         startsWith.add("This version of Minecraft is extremely outdated");
+        startsWith.add("Custom worlds heights are NOT SUPPORTED for 1.16 players and older");
+        startsWith.add("You have min/max set to -64/384");
         ignoreStartsWith = Collections.unmodifiableList(startsWith);
 
         List<String> contains = new ArrayList<>();
@@ -149,6 +151,7 @@ public class ErrorHandler extends Handler {
         contains.add("moved wrongly!");
         contains.add("was kicked for floating too long!");
         contains.add("just tried to change non-editable sign");
+        contains.add("about their usage of System.out/err.print");
         ignoreContains = Collections.unmodifiableList(contains);
     }
 }