I would like to do right by the deprecation warnings and suppress or silence them or whatever you might recommend as the best solution. 
DEPRECATION WARNING: You have Rails 2.3-style plugins in
vendor/plugins! Support for these plugins will be removed in Rails
4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See
the release notes for more on this:
http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released.
(called from <top (required)> at /app/Rakefile:7)
I did some quick initial research and found this on StackOverflow