Add zenodo integration
Merge branch 'master' into zenodo
Merge branch 'master' into zenodo

Conflicts:
	Gemfile
	db/schema.rb
Checkpoint on DOIs
Update zenodo gem
Cleanup publish method
Fix deprecation warning
Add citation URL
Add citation fields to API
Add doi badge
Update wiki with DOI info
Update zenodo gem
Add more line breaks to badge
Merge pull request #21 from sprotocols/zenodo

Zenodo