Add Ruby 1.9.3-p429 railsexpress patchset

This resolves #1906.
Add Ruby 1.8.7-p371 railsexpress patchset

This resolves #1907.
Merge pull request #1921 from felixbuenemann/features/update-railsexpress-patchsets

Update railsexpress patchsets, closes #1906, closes #1907