Changelog SSL default dir

Former-commit-id: ecaeb5dc15b5668dac49934e9fc543ae11c73630

Author: subnetmarco

CHANGELOG.md

@@ -12,6 +12,7 @@
 #### Changed
 
 - Remove `cassandra.port` property in configuration. Ports are specified by having `cassandra.hosts` addresses using the `host:port` notation (RFC 3986). [#457](https://github.com/Mashape/kong/pull/457)
+- Default SSL certificate is now auto-generated and stored in the `nginx_working_dir`.
 
 #### Fixed