Update Changelog/Release notes for 11.2.5 release
`private-chef-ctl password` - put quotes around the password so special characters can be used
Merge branch 'jhs/fix_p-c-c_password_11.1-stable' into 11.1-stable
Making postgres effective_cache_size match the documentation

- https://docs.getchef.com/config_rb_chef_server_optional_settings.html
- The docs mention that the default effective_cache_size is 50% of total
  RAM, but the code hardcoded things to 128MB