VOL-1247 : Modified change tuple to include previous and latest data

VOL-1214 : Fixed logs to use the proper mechanism

- Added missing license
- Moved one change tuple statement which would not include proper info

Change-Id: I5a02f6fe92c8b193642294d62f4413ac6edc0c62
diff --git a/db/model/utils.go b/db/model/utils.go
index 65c1c4a..1966c5c 100644
--- a/db/model/utils.go
+++ b/db/model/utils.go
@@ -78,7 +78,7 @@
 			}
 		}
 	default:
-		//fmt.Printf("%s Unhandled <%+v> ... It's a %+v\n", prefix, obj, k)
+		//log.Debugf("%s Unhandled <%+v> ... It's a %+v\n", prefix, obj, k)
 	}
 
 	return nil
@@ -120,7 +120,7 @@
 			}
 		}
 	default:
-		//fmt.Printf("%s Unhandled <%+v> ... It's a %+v\n", prefix, obj, k)
+		//log.Debugf("%s Unhandled <%+v> ... It's a %+v\n", prefix, obj, k)
 	}
 
 	return nil
@@ -175,7 +175,7 @@
 			}
 		}
 	default:
-		//fmt.Printf("%s Unhandled <%+v> ... It's a %+v\n", prefix, obj, k)
+		//log.Debugf("%s Unhandled <%+v> ... It's a %+v\n", prefix, obj, k)
 	}
 
 	return attribName, attribValue
@@ -229,7 +229,7 @@
 
 		}
 	default:
-		//fmt.Printf("%s Unhandled <%+v> ... It's a %+v\n", prefix, obj, k)
+		//log.Debugf("%s Unhandled <%+v> ... It's a %+v\n", prefix, obj, k)
 	}
 
 	return result