Update to Rails 3.2.21 (fixes CVE-2014-7829)
Merge pull request #41 from dpla/update-rails-to-3.2.21

Update to Rails 3.2.21 (fixes CVE-2014-7829)
change slide images and captions
Merge pull request #42 from dpla/7744-carousel-images

change slide images and captions
Merge branch 'release-v19.1.2'