On the trunk:

  *) mod_md: v0.9.1:
     - various fixes in MDRenewWindow handling when specifying percent. Serialization changed. If 
       someone already used percent configurations, it is advised to change these to a new value,
       reload and change back to the wanted ones.
     - various fixes in handling of MDPrivateKeys when specifying 2048 bits (the default) explicitly.
     - mod_md version removed from top level md_store.json file. The store has its own format version
       to facilitate upgrades.
 


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1807347 13f79535-47bb-0310-9956-ffa450edef68