Correct header reference to JTS Envelope

Signed-off-by: Jody Garnett <jody.garnett@gmail.com>
Copy corrected header from master

Signed-off-by: Jody Garnett <jody.garnett@gmail.com>
Restore original header from Dennis M. Sosnoski

Signed-off-by: Jody Garnett <jody.garnett@gmail.com>
copy corrected header from master

Signed-off-by: Jody Garnett <jody.garnett@gmail.com>