ensure we're using bundler's test env

Author: defunkt

test/test_helper.rb

@@ -1,9 +1,12 @@
+require 'rubygems'
+require 'bundler'
+Bundler.setup(:default, :test)
+Bundler.require(:default, :test)
+
 dir = File.dirname(File.expand_path(__FILE__))
 $LOAD_PATH.unshift dir + '/../lib'
 $TESTING = true
 require 'test/unit'
-require 'rubygems'
-require 'resque'
 
 begin
   require 'leftright'