VistaMenu is licensed under the BSD license. Read these 2 points:
Copyright (c) 2009, wyDayAll rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
So yes, you can integrate it within your app & change the name to whatever you want. And no, you can't remove the copyright notice.