Limit RedisBungee thread pool to 32 threads

Closes #27

src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungee.java

@@ -31,6 +31,7 @@ import java.util.*;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.FutureTask;
+import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.logging.Level;
@@ -235,6 +236,7 @@ public final class RedisBungee extends Plugin {
 
     @Override
     public void onEnable() {
+        ((ThreadPoolExecutor) getExecutorService()).setMaximumPoolSize(32);
         try {
             loadConfig();
         } catch (IOException e) {