Remove NameVirtualHost, as it causes a startup warning.

Update comment about required modules in extra configuration files. Mostly adding the information to the vhost and ssl files, and adding mod_authz_core and mod_authz_host (for "Require all denied" and "Require all granted") where needed.

Quote any file system path that may have spaces when expanded

Provide vhosts examples remotely related to the httpd.conf we create?

centralize the versioning of the httpd and the docs directories

Merged the simple-conf branch changes r159781:160695 into the trunk.