Incorrect options for PostgreSQL sslmode listed in documentation

Incorrect values for database.sslmode are listed in the PostgreSQL connector documentation http://debezium.io/docs/connectors/postgresql/#connector-properties . The page lists the options as disabled, required, verify_ca, and verify_full. However, the correct options are disable, require, verify-ca, and verify-full. Passing invalid options causes the Kafka Connect API to return a 500 error.