added styles and responsive grid module
updated exhibit_views_and_page_handlers feature
Attempt to work through merge conflict https://github.com/pulibrary/rbsc_drupal_exhibit/pull/3

Merge remote-tracking branch 'origin/subcase_style_enhancements' into resolve_merge_conflict_subcase_style_enhancements
Merge pull request #5 from pulibrary/resolve_merge_conflict_subcase_style_enhancements

Resolve merge conflict subcase style enhancements