Add PubMed search results widget to '/help/papers'
Code cleanup
Merge pull request #2 from aoles/andrzej

Add PubMed search results widget to 'help/publications'
Merge remote-tracking branch 'upstream/master'
Refactored PubMed widget and Publications page
Fail gracefully if no clue about the publication date
Merge pull request #3 from aoles/andrzej

Refactored PubMed widget and the Publications page
some cosmetic changes based on feedback from martin

also adding a helper function that shows the date the pubmed
search stuff was last udpated