Merge pull request puppetlabs#641 from hunner/doc_apache_version

Document apache::apache_version

Author: blkperl

README.md

@@ -215,6 +215,10 @@ You may establish a default vhost in this class, the `vhost` class, or both. You
 
 **Parameters within `apache`:**
 
+#####`apache_version`
+
+Configures the behavior of the module templates, package names, and default mods by setting the Apache version. Default is determined by the class `apache::version` using the OS family and release. It should not be configured manually without special reason.
+
 #####`confd_dir`
 
 Changes the location of the configuration directory your custom configuration files are placed in. Defaults to '/etc/httpd/conf' on RedHat, '/etc/apache2' on Debian, and '/usr/local/etc/apache22' on FreeBSD.
@@ -1738,4 +1742,4 @@ Quickstart:
     bundle install
     bundle exec rake spec
     bundle exec rspec spec/acceptance
-    RS_DEBUG=yes bundle exec rspec spec/acceptance
+    RS_DEBUG=yes bundle exec rspec spec/acceptance