Set stomp.py to use max SSL/TLS version possible
Set stomp.py to use max SSL/TLS version possible

- Set ssl_version argument to ssl.PROTOCOL_SSLv23 on Connection from
  stomp.py so that the highest SSL/TLS version possible is used between
  client and server. Currently stomp.py defaults to SSLv3 which is no
  longer secure.

stfc/ssm,stfc/ssm,apel/ssm,tofu-rocketry/ssm,apel/ssm,tofu-rocketry/ssm