Merge branch 'release/0.6.4'

* release/0.6.4: (30 commits)
  Bumping to version 0.6.4
  Had to change the Solr field symbol in some more places
  Add soft delete option to application template
  Changing the sort fields to just have one stored_sortable Solr field. The previous code was just creating one solr field which was multi-valued and not sortable. Not sure if that's a configuration issue in Curate or a Solrizer bug
  Use rails_autolink gem to create link for pernal profile fields
  Defining the Hydra Way for Curate
  Update .travis.yml
  The 'confirm' key is going away in favor of data attributes
  Create works delete button and modify controller.
  Use rails_autolink gem
  Updating the README TOC to include Auth config
  Small fixes to some wording
  Add question prompt for RSpec in application template
  Fix some copy/paste and other trivial typos in README.md.
  Add rspec:install to application template
  Provide information to integrate different authentication system.
  Adds delete button to the collections#show view
  Collection's edit page should display its members.
  Unzip Jetty before exiting application template
  Person should not be added to Collection
  ...
Merge remote-tracking branch 'origin'
Bumping to version 0.6.6
Merge branch 'release/0.6.6'

* release/0.6.6: (33 commits)
  Bumping to version 0.6.6
  Moving soft delete code back inside jetty area, since code being placed depends on jetty being there.
  Fixed three bugs in the application template code.
  Tweaked the CSS for the profile photo and accompanying text.
  Updating a URL resource should redirect to page show page
  Add representative image to Collection
  Update flash message to state more information
  Add members during group creation
  HYDRASIR-317 Profile field adjustments and UI implementation
  Creating additional spec groups
  HYDRASIR-317 Profile field adjustments and UI implementation
  HYDRASIR-317 Profile field adjustments and UI implementation
  HYDRASIR-317 Profile field adjustments and UI implementation
  Hotfix to .travis.yml
  Adjusting specs to use new EZID credentials
  Attempting to speed up tasks on Travis
  Editor Group field for a work should not be a mandatory field
  Remove "Collection" facet
  HYDRASIR-36 Display Creative Commons licenses or similar license terms that submitter has selected
  Correct minor glitch in making Group title unique
  ...
Merge branch 'develop'

* develop: (99 commits)
  Fixes bugs for Groups w.r.t depositor
  Updating URL for Travis build
  Editors (if more than one) should be saved properly during creation of work.
  Change Group to rely on user_key instead of depositor
  Fix issue with adding editors to a generic work
  Remove conflicting Solr filters for Group
  Adjusting Group Membership user comparison
  Testing and handling Groups Controller error
  Fix predicate_mappings.yml file path for generator
  Fixing embargo when visibility is set via default
  Adding multi-value presence validation
  Array#wrap of multi-value input collection
  Tweaking how future date validation works
  Fixing turbolink issue, autocomplete was not working for searching for works on work show page and class name typo
  Updating gemspec to work for hydra-derivatives
  turbolink prevented javascript and hence gave unneccesary error
  Representative value of parent should reset when a rep file is deleted
  Better fix for moving works from embargo to public
  Remove embargo date when object is not embargoed
  FIX - Adding Group to GenericWork
  ...
Adding indicator of DOI availability