Merge pull request cloudbees-oss#18 from idserda/fix-tostring-userfield

Fix for wrong type in UserField tostring

Author: stephenc

src/main/java/org/zendesk/client/v2/model/UserField.java

@@ -101,7 +101,7 @@ public void setUpdatedAt(Date updatedAt) {
 
     @Override
     public String toString() {
-        return "OrganizationField{" +
+        return "UserField{" +
                 "id=" + id +
                 ", type='" + type + '\'' +
                 ", key='" + key + '\'' +