PLOS specific code
ID separators are _, add journal title
ignore .DS_Store
Expose journal as a facet.
Remove organism and article type facets.
Start building support for serial annotations
Fix issue with serial font styling annotations. Starting to debug authors and meta info
Split out acknowledgements
Fix author affiliation/email bugs. Add funding
Dealt with conversion stalling in no author contrib case and when the corresponding author is not annotated in the xml
Add formula and table URL support for PNG files
Add debug articles
Use debug mode for now.
Use full plos_xml_list.
Merge branch 'plos-dev' of github.com:elifesciences/refract into plos-dev

Conflicts:
	lib/api.js
	lib/cache_warmer.js
	lib/converter.js