fix new ui member-pic default size 200 * 200

app/uploaders/avatar_uploader.rb

@@ -42,7 +42,7 @@ class AvatarUploader < CarrierWave::Uploader::Base
   # end
   
   version :thumb do
-    process :resize_to_fit => [80, 80]
+    process :resize_to_fit => [200, 200]
   end
 
   # Add a white list of extensions which are allowed to be uploaded.