Administration security (rtBlogPageAdmin) is on by default and requires the
permission admin_blog. This permission can be customized by setting in the
app.yml the rt_wiki_admin_credential property. This permission is added to the
admin group from the rtCorePlugin fixtures file.
Visitor security (rtBlogPage) is off by default. It can be enabled by setting
in the app.yml the rt_blog_is_private property to true. By default no specific
permission is configured. A permission can be configured by setting in the
app.yml the rt_blog_visitor_credential property.