Organized imports for main classes

Change-Id: I3b05d7f289706aef04019a820be9989f8fb54945
diff --git a/src/main/java/net/onrc/onos/core/intent/runtime/PersistIntent.java b/src/main/java/net/onrc/onos/core/intent/runtime/PersistIntent.java
index 8efded2..53be91c 100755
--- a/src/main/java/net/onrc/onos/core/intent/runtime/PersistIntent.java
+++ b/src/main/java/net/onrc/onos/core/intent/runtime/PersistIntent.java
@@ -4,9 +4,6 @@
  */
 package net.onrc.onos.core.intent.runtime;
 
-import com.esotericsoftware.kryo.Kryo;
-import com.esotericsoftware.kryo.io.Output;
-
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.nio.ByteBuffer;
@@ -27,6 +24,9 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.esotericsoftware.kryo.Kryo;
+import com.esotericsoftware.kryo.io.Output;
+
 /**
  *
  * @author nickkaranatsios