Revert "Decreasing default max connections per node to 10"

This reverts commit a6bedff.

src/java/voldemort/client/ClientConfig.java

@@ -45,7 +45,7 @@
  */
 public class ClientConfig {
 
-    private volatile int maxConnectionsPerNode = 10;
+    private volatile int maxConnectionsPerNode = 50;
     private volatile int maxTotalConnections = 500;
     private volatile int maxThreads = 5;
     private volatile int maxQueuedRequests = 50;