Renamed many classes and feature to use "secure" term instead of "ssl". (note, the .ecf are still using the "ssl" terminologie).

Provided easy way to set secure settings for Standalone.
For wsf launcher boolean option accept "true" or "yes" for True boolean, anything else is False.

examples/simple_ssl/simple.ini

@@ -17,11 +17,11 @@ port=9090
 #keep_alive_timeout=15
 #max_keep_alive_requests=100
 
-### SSL settings
+### Secure connection settings
 # enable SSL, with file certificate.
-ssl_enabled=true
-ssl_ca_key=simple.key
-ssl_ca_crt=simple.crt
+is_secure=true
+secure_certificate=ca.crt
+secure_certificate_key=ca.key
 
 ### App settings
 verbose=true