Vellum includes Mozilla Rhino, relocated to dev.vellum.shadow.rhino and modified. Rhino is licensed under
the Mozilla Public License 2.0 (LICENSE.txt); NOTICE.txt lists the other code it contains.

Source: the upstream commit https://github.com/mozilla/rhino/tree/8527ebbf6d0b1599f819b5001af06e5dd9147013
with the patches in rhino/patches of https://github.com/MaxLeiter/vellum applied in order.
