GUACAMOLE-1956: Rename SSL client auth properties to use "ssl-auth" prefix (not just "ssl").

The "ssl" prefix sounds like it's meant for configuring general use of
SSL/TLS for encryption in front of Guacamole, which is confusing,
particularly when encountering the "SSL_ENABLED" environment variable.

The "ssl-auth" prefix and "SSL_AUTH_ENABLED" environment variable don't
suffer from the same issue.
2 files changed