Merge pull request #1 from jamesboehmer/master

Added topic type, fixed formatDate for null objects.
Merge pull request #2 from jamesboehmer/master

Added pub_year and pub_month facets to portal picker.
Fixed date string parsing
Edited some slide text.
Merge pull request #3 from jamesboehmer/master

Changed default URL to json to work with new CORS compliant API.
Merge pull request #4 from jamesboehmer/master

Portal date picker fix
Fixed a bug with headlines for recipes with no headline.main
Added support for recipes, section fronts, and columns
Merge pull request #2 from NYTimes/master

Added recipe, column, and sectionfront types