Removed dpla-specific images
Merge remote-tracking branch 'origin/develop'
Merge branch 'release-v11.0'
Merge branch 'release-v12.0'
Merge branch 'release-v13.0'
Merge branch 'release-v13.1'
Merge branch 'release-v13.2'
Merge branch 'release-v13.3'
Merge branch 'master' of github.com:dpla/exhibitions
Release v13.4
Merge branch 'release-v13.4'
Merge branch 'master' into develop