Fix checkstyle errors when building archetype-generated apps

Checkstyle validation is now enabled by default in onos-dependencies
(archetypes' parent pom). We also add a reference to the archetypes' pom
to disable checkstyle, if needed.

Change-Id: I9b6e6cecf2d704f52ec1f118eae2aafd03cf0b9a
diff --git a/tools/package/archetypes/uitab/src/main/resources/archetype-resources/src/main/java/AppUiTableMessageHandler.java b/tools/package/archetypes/uitab/src/main/resources/archetype-resources/src/main/java/AppUiTableMessageHandler.java
index 2645c32..33634b8 100644
--- a/tools/package/archetypes/uitab/src/main/resources/archetype-resources/src/main/java/AppUiTableMessageHandler.java
+++ b/tools/package/archetypes/uitab/src/main/resources/archetype-resources/src/main/java/AppUiTableMessageHandler.java
@@ -1,6 +1,6 @@
-#set( $symbol_pound = '#' )
-#set( $symbol_dollar = '$' )
-#set( $symbol_escape = '\' )
+#set($symbol_pound='#')
+#set($symbol_dollar='$')
+#set($symbol_escape='\' )
 /*
  * Copyright ${year}-present Open Networking Foundation
  *
@@ -99,7 +99,7 @@
 
             // fake data for demonstration purposes...
             List<Item> items = getItems();
-            for (Item item: items) {
+            for (Item item : items) {
                 populateRow(tm.addRow(), item);
             }
         }