Performance Improvements (#340)

* Performance Improvements

* More Optimizations

* Even More Optimizations & Cleanups

* Almost a recode I guess

src/main/java/me/clip/placeholderapi/expansion/Cleanable.java

@@ -30,11 +30,10 @@ import org.bukkit.entity.Player;
  * @author Ryan McCarthy
  */
 public interface Cleanable {
-
     /**
      * Called when a player leaves the server
      *
-     * @param p (@link Player} who left the server
+     * @param player (@link Player} who left the server
      */
-    void cleanup(Player p);
+    void cleanup(Player player);
 }