adding publish_date to hearing document data
adding publish_date to hearing document data

Nolawee/congress,unitedstates/congress,sunlightlabs/congress-opencongress,chriscondon/billtext,chriscondon/billtext,boblannon/congress,sunlightlabs/congress-opencongress,boblannon/congress,unitedstates/congress,Nolawee/congress