image uploader does two thumbnails

app/uploaders/image_uploader.rb

@@ -11,7 +11,11 @@ class ImageUploader < CarrierWave::Uploader::Base
     %w(jpg jpeg gif png)
   end
 
-  version :small_thumb do
+  version :thumb_small do
+    process :resize_to_fill => [30,30]
+  end
+
+  version :thumb_medium do
     process :resize_to_fill => [100,100]
   end
 end

app/views/layouts/application.html.haml

@@ -57,5 +57,4 @@
                 = my_latest_message
           = yield
 
-        .span-20.last
           = render "posts/debug"

app/views/photos/_photo.haml

@@ -6,7 +6,7 @@
     = link_to_person post.person
     %b posted a new photo
     %br
-  = link_to (image_tag post.image.url(:small_thumb)), object_path(post)
+  = link_to (image_tag post.image.url(:thumb_medium)), object_path(post)
     
   %div.time
     = link_to(how_long_ago(post), status_message_path(post))