function rename( oldPath, newPath, clbk ) {
	native( oldPath, newPath, clbk );
}
Asynchronously renames a file.

@param {(string|Buffer)} oldPath - old path
@param {(string|Buffer)} newPath - new path
@param {Function} clbk - callback to invoke after renaming a path

@example
function done( error ) {
    if ( error ) {
        throw error;
    }
}

rename( './beep/boop.txt', './beep/foo.txt', done );