Change pool category class location

In order to make blacklisting by category easier.

app/views/pools/index.html.erb

@@ -11,12 +11,12 @@
       </thead>
       <tbody>
         <% @pools.each do |pool| %>
-          <%= content_tag(:tr, :id => "pool-#{pool.id}") do %>
+          <%= content_tag(:tr, :id => "pool-#{pool.id}", :class => "pool-category-#{pool.category}") do %>
             <td>
 
             </td>
             <td>
-              <%= link_to pool.pretty_name, pool_path(pool), :class => "pool-category-#{pool.category}" %>
+              <%= link_to pool.pretty_name, pool_path(pool) %>
 
               <% if pool.post_count > CurrentUser.user.per_page %>
                 <%= link_to "page #{pool.last_page}", pool_path(pool, :page => pool.last_page), :class => "last-page" %>