fixes for issues 14,15, 21, 23, 24 and 26

hyrax/app/controllers/hyrax/admin/workflows_controller.rb

...x/app/controllers/hyrax/crc1280_experiments_controller.rb

.../app/helpers/hyrax/listeners/lifecycle_listener_helper.rb

hyrax/app/indexers/crc1280_experiment_indexer.rb

hyrax/app/indexers/hyrax/indexes_workflow.rb

hyrax/app/listeners/hyrax_listener.rb

hyrax/app/models/complex_modality.rb

hyrax/app/models/complex_session.rb

hyrax/app/models/complex_subject.rb

hyrax/app/models/hyrax/pcdm_collection.rb

hyrax/app/services/hyrax/work_uploads_handler.rb

hyrax/app/views/hyrax/admin/workflows/_tabs.html.erb

hyrax/app/views/hyrax/datasets/show.html.erb

hyrax/config/locales/hyrax.en.yml