Enable checkstyle rule for JLS modifier order

JLS specifies a preferred order for modifiers in
declarations.  Enabled this rule and fixed the
problems that it encountered.

Change-Id: I5e8fa3d29f785ced4c61fbb8c7c8b168289f06e2
diff --git a/src/main/java/net/onrc/onos/core/intent/runtime/PlanCalcRuntime.java b/src/main/java/net/onrc/onos/core/intent/runtime/PlanCalcRuntime.java
index 7ea3bab..a671d7a 100644
--- a/src/main/java/net/onrc/onos/core/intent/runtime/PlanCalcRuntime.java
+++ b/src/main/java/net/onrc/onos/core/intent/runtime/PlanCalcRuntime.java
@@ -31,7 +31,7 @@
 public class PlanCalcRuntime {
 
     //    NetworkGraph graph;
-    private final static Logger log = LoggerFactory.getLogger(PlanCalcRuntime.class);
+    private static final Logger log = LoggerFactory.getLogger(PlanCalcRuntime.class);
 
     public PlanCalcRuntime(/*NetworkGraph graph*/) {
 //      this.graph = graph;