refs #2972 - add rack-jsonp
refs #2972 - foreman requires jsonp, ship bundler.d/jsonp.rb

Since ~foreman was included recursively, swapped to a more explicitly layout
to name the sub-dirs that are required in the RPM.  This then allows us to
pull in the empty bundler.d dir and specific files below it, instead of
excluding files that are in other sub-packages.