如何在Rails 3.1中禁用资产管道（链轮）消息的日志记录？

Question

默认情况下，在Rails 3.1（RC1）下，（dev）日志中的链轮往往很冗长：

Started GET "/assets/application.css" for 127.0.0.1 at 2011-06-10 17:30:45 -0400

Compiled app/assets/stylesheets/application.css.scss  (5ms)  (pid 6303)

Started GET "/assets/application.js" for 127.0.0.1 at 2011-06-10 17:30:45 -0400

Compiled app/assets/stylesheets/default.css.scss  (15ms)  (pid 6303)

...

Started GET "/assets/default/header_bg.gif" for 127.0.0.1 at 2011-06-10 17:30:45 -0400

Served asset /default/header_logo.gif - 304 Not Modified  (7ms)  (pid 6303)

Served asset /default/header_bg.gif - 304 Not Modified  (0ms)  (pid 6246)

Served asset /default/footer_bg.gif - 304 Not Modified  (49ms)  (pid 6236)

...

我想降低详细程度或完全禁用它。我假设有一个干净的方法来禁用或减少日志记录的冗长性，方法是在其中添加一条environment.rb或多条配置行development.rb以config.active_record.logger = nil使ActiveRecord SQL语句静音。