another big commit :D

app/views/blogposts/show.html.erb

@@ -3,12 +3,12 @@
     <h1><%= @post.title %></h1>
   </div>
   <span class="post-info"><%= link_to @post.author.name, @post.author %> on <%= @post.created_at.strftime("%e. %b %Y") %>
-    <% if current_user && current_user.rank >= rank_to_int("mod") %>
+    <% if mod? %>
      - <%= link_to "edit", edit_blogpost_path(@post.id) %>
     <% end %>
   </span>
   <div class="post-content">
-    <%= RbbCode.new.convert(@post.text).html_safe %>
+    <%= GitHub::Markdown.render_gfm(Sanitize.clean(@post.content, Sanitize::Config::RESTRICTED)).html_safe %>
   </div>
   <div id="comments">
     <% @post.comments.each do |c| %>