Don't show paper authors on the manuscript.
failing specs for paper factory and controller
Remove author creation from paper factory
Remove passing specs.
Remove dangling to_author.

[ci skip]
Merge pull request #515 from Tahi-project/dont-show-paper-authors

Don't show paper authors on the manuscript.
Merge pull request #516 from Tahi-project/dont-add-self-as-author

Dont add the paper's submitter as an author.
Merge branch 'master' into author-validations

Conflicts:
	app/services/paper_factory.rb