Merged r10689 from trunk to 2.0-stable
Partial backout r10263.
Backout replacing shoulda context of test/unit/helpers/issues_helper_test.rb. Test methods in shoulda context do not run on Ruby 1.8.7-p370.
Authored by: tmaruyama 2012-10-22
Parent: [r10694]
Child: [r10696]
