Adjusted access level for EcommerceItem toJsonArray()

Author: bcsorba

src/main/java/org/piwik/java/tracking/EcommerceItem.java

@@ -141,7 +141,7 @@ public String toString(){
      * Returns the value of this EcommerceItem as a JsonArray.
      * @return this as a JsonArray
      */
-    protected JsonArray toJsonArray(){
+    JsonArray toJsonArray(){
         JsonArrayBuilder ab = Json.createArrayBuilder();
         ab.add(sku);
         ab.add(name);