* All users can now view deleted posts.

* Posts now have an is_banned flag for artist removal requests.  Basic users can not view banned posts but gold and higher can.
* Banning an artist both deletes the post and bans it.
* By default deleted posts are not filtered out of post searches at the sql level.

test/unit/artist_test.rb

@@ -37,6 +37,10 @@ class ArtistTest < ActiveSupport::TestCase
         @post.reload
       end
 
+      should "ban the post" do
+        assert(@post.is_banned?)
+      end
+
       should "delete the post" do
         assert(@post.is_deleted?)
       end