Add back basic PubMed XML generation code.
Prep for integration not using __main__, and bug fix.
Add parsing of pub-date for VoR articles and use it when generating.
Draft support for contrib affiliations for both PoA and VoR articles.
Merge branch 'master' of github.com:gnott/elife-poa-xml-generation into pubmed
Editorial article support by not failing when history is absent.
ORCID for pubmed.
Remove unwanted tags from affiliation and abstract.
Remove email from PoA contrib affiliation.
Convert <italic> to <i> for pubmed.
Parse and add article categories to pubmed XML.
Parse keywords for research organism and author keywords for pubmed XML.
Lower case for article categories.
Quick author keywords addition to article PoA XML.
Merge pull request #165 from gnott/tweaks

Research advance display-channel for article type ID 15.
Merge branch 'master' of github.com:gnott/elife-poa-xml-generation into pubmed
Refactor XML parsing from XML generation on crossref and pubmed, and pubmed data hooks for PoA non-PoA files.
Turn off pretty print again in generatePoaXML.py
Bug fix PubMed True / False is PoA.
Replaces tag and history aheadofprint logic for Pubmed.