License update, see https://github.com/phetsims/scenery/commit/3b6a71949cad7a617223ce590e0d62d28d70b8a5
Adding safe self bounds to Node/Text, with toCanvas and associated toImage support. Port of https://github.com/phetsims/scenery/commit/8e78f9a2886a0caf35e21f98e9c4d470c1ea4c2e, see #219