Display the API request headers and body in addition to the response

This allows an API caller to see exactly what the request looks like so
that they can implement the same request on their own.
Merge branch 'requestInfo' of https://github.com/cjthompson/iodocs into cjthompson-requestInfo
Enabled hiding section headers in request #183
Merge branch 'cjthompson-requestInfo'
Fixed bug so params can be put in Request Headers
Updated usatoday.json