removing extraenous post that also exists in _posts dir
adding ability to specify constituent story by id in zip-data.csv by updating csv_to_page.rb - #20
adding constituent story to zip layout - #20
updates to zip detail styling to reduce gaps and include constituent story elements
adding constituent-stories.csv to hold constituent stories referenced in zip-data.csv #20
adding placeholder constituent image - #20
updates to config to consider new "press" and "products" collections - #111
adding _press and _products collections to hold markdown files of each type and moving press/product markdown files from _posts into their respective new collection dirs - #111