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/apps/bgproute/RestClient.java b/src/main/java/net/onrc/onos/apps/bgproute/RestClient.java
index e0976cc..338b599 100644
--- a/src/main/java/net/onrc/onos/apps/bgproute/RestClient.java
+++ b/src/main/java/net/onrc/onos/apps/bgproute/RestClient.java
@@ -12,7 +12,7 @@
 import org.slf4j.LoggerFactory;
 
 public final class RestClient {
-    private final static Logger log = LoggerFactory.getLogger(RestClient.class);
+    private static final Logger log = LoggerFactory.getLogger(RestClient.class);
 
     private RestClient() {
         // Private constructor to prevent instantiation