Rakefile in active_model_warnings-0.1.0 vs Rakefile in active_model_warnings-0.1.1

@@ -1,6 +1,10 @@
-require "bundler/gem_tasks"
+require "rubygems"
+require "bundler"
+require 'rake'
+require 'appraisal'
 require "rspec/core/rake_task"
 
+Bundler::GemHelper.install_tasks
 RSpec::Core::RakeTask.new(:spec)
 
 task :default => :spec