Reorganize variables
Reorganize variables

rentlytics/heroku-buildpack-poppler,soomo/heroku-buildpack-poppler,jaipandya/heroku-buildpack-pdftohtml,soomo/heroku-buildpack-poppler,trsampaio/heroku-buildpack-poppler,trsampaio/heroku-buildpack-poppler,jaipandya/heroku-buildpack-pdftohtml,rentlytics/heroku-buildpack-poppler