Highly recommend removing CA certs for WoSign and StartCom

I’m strongly recommending that maintainers of openHABian remove the CA certs for WoSign and their partner StartCom. WoSign should be called WoeSign. They’re now distrusted by most of the browsers.

https://blog.mozilla.org/security/2016/10/24/distrusting-new-wosign-and-startcom-certificates/

I think it would also be helpful to have some clear, step-by-step instructions that most anyone can follow who wants to remove questionable certs. That way I can immediately remove certs I’d rather not have from questionable sources like The Hong Kong Post Office, various CAs in China, etc.

Thanks!