Add active-record_acts_as gem; Required to also upgrade Rails to 4.1.6
[#76096156] Created plos author task
[#76096156] fixing some specs
typo
Create extended PlosAuthor model
Add validations on plos_author when task is complete
Add validations on plos_authors
Add factory for plos_authors
Bubble up associated model errors
Remove custom error formatter
Remove attributes from AuthorSerializer
Add todo
Use plos author model for paper model
Display plos author on client
display author view for plos author
remove unused file
Merge branch 'master' into author-validations

Conflicts:
	db/schema.rb
	engines/plos_authors/app/assets/javascripts/plos_authors/controllers/overlays/plos_authors_overlay_controller.js.coffee
Fix model extension typo
Allow CRUD operations for plos authors
Handle authors that were created from other tasks