Update Drupal to 7.27
Merge pull request #2 from paulwc/master

Changes made to address issues from https://jira.duraspace.org/browse/ISLANDORA-958
Tweaks to Gemfile, Berksfile versions
Tidy attributes; update README
Fixes #4
Closes #5
Merge pull request #3 from ryersonlibrary/master

Bring updates in from main