Summary: Changed the configuration parameter from ssl_verify to verify_ssl
Summary:
Changed the configuration parameter from ssl_verify to verify_ssl

Description:
In commit "Naming env refactoring: from SSL_VERIFY to VERIFY_SSL" done on Oct 25 2016, the configuration parameter was changed. This was not reflected in the example/simple.rb. This commit is done to fix the same,

juliancheal/xclarity_client,lenovo/xclarity_client,lenovo/xclarity_client,juliancheal/xclarity_client