awesome_nested_set: import git 2-1-stable branch revision 606847769 (#6579)

https://github.com/collectiveidea/awesome_nested_set/commit/606847769

git-svn-id: http://svn.redmine.org/redmine/trunk@13143 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/plugins/awesome_nested_set/spec/spec_helper.rb

@@ -2,6 +2,7 @@ plugin_test_dir = File.dirname(__FILE__)
 
 require 'rubygems'
 require 'bundler/setup'
+require 'pry'
 
 require 'logger'
 require 'active_record'
@@ -22,6 +23,7 @@ require 'support/models'
 
 require 'action_controller'
 require 'rspec/rails'
+require 'database_cleaner'
 RSpec.configure do |config|
   config.fixture_path = "#{plugin_test_dir}/fixtures"
   config.use_transactional_fixtures = true