This is spree extension which replaces all admin’s textareas by Imperavi Redactor (github.com/x2es/imperavi-redactor)
Original redactor sources and russian documentation: imperavi.ru/redactor
Works with Spree-0.30+
Just include gem in your Gemfile:
gem 'spree_admin_redactor', :git => 'git://github.com/x2es/spree_admin_redactor.git'
And install assets (from your app):
rake spree_admin_redactor:install:assets
If you want to disable admin_redactor for some action, then you can define constant like
ADMIN_REDACTOR_EXCLUDES = [{:controller => 'admin/products', :action => 'edit'}]
(this was fast fix - this should be refactored in future)
https://github.com/davidnorth/spree-ckeditor