tweak tweeter popover footer.
remove broken twttr library call.
get twitter images from https endpoint.
fix pmid and link to json
Merge branch 'show-tweets' into new-db

Conflicts:
	totalimpactwebapp/static/dist/Impactstory.js
	totalimpactwebapp/static/src/app/tweet/tweet.tpl.html
	totalimpactwebapp/tweeter.py
tweet gathering works on create product