settings: remember whether a setting has its default value or not
[openssl] adds fix_alert_handling.patch from 0.9.8za to fix issues with github hosted repositories
Merge pull request #4484 from jmarshallnz/curl_ssl_fix

[openssl] backport fix to alert handling from openssl 0.9.8za to fix github repos
Merge pull request #4487 from Montellese/settings_defaults

settings: remember whether a setting has its default value or not