GUACAMOLE-1284: add OPENID_MAX_TOKEN_VALIDITY to start.sh
GUACAMOLE-1284: add OPENID_MAX_TOKEN_VALIDITY to start.sh

glyptodon/guacamole-client,glyptodon/guacamole-client,glyptodon/guacamole-client,glyptodon/guacamole-client,glyptodon/guacamole-client