On the trunk:

mod_md v0.7.0: 
     - LIVE: the real Let's Encrypt CA is now live by default! If you need to experiment, configure
           MDCertificateAuthority https://acme-staging.api.letsencrypt.org/directory   
     - When existing, complete certificates are renewed, the activation of the new ones is
       delayed by 24 hours (or until the existing ones expire, whatever is earler) to accomodate
       for clients with weird clocks, refs #1. 
     - Fixed store sync when MDCAChallenges was removed again from an MD. 
     - Fixed crash when MD matched the base server, fixes #23
     - Fixed watchgod resetting staging when server processes disappeared (e.g. reached
       max requests or other limits).



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1805294 13f79535-47bb-0310-9956-ffa450edef68