Proper derefs

src/main/java/com/volmit/iris/util/io/FolderWatcher.java

@@ -136,4 +136,11 @@ public class FolderWatcher extends FileWatcher {
     public KList<File> getDeleted() {
         return deleted;
     }
+
+    public void clear() {
+        watchers.clear();
+        changed.clear();
+        deleted.clear();
+        created.clear();
+    }
 }

src/main/java/com/volmit/iris/util/io/ReactiveFolder.java

@@ -89,4 +89,8 @@ public class ReactiveFolder {
 
         return fw.checkModified();
     }
+
+    public void clear() {
+        fw.clear();
+    }
 }

src/main/java/com/volmit/iris/util/mantle/Mantle.java

@@ -358,6 +358,7 @@ public class Mantle {
             Iris.reportError(e);
         }
 
+        loadedRegions.clear();
         Iris.debug("The Mantle has Closed " + C.DARK_AQUA + dataFolder.getAbsolutePath());
     }