Added explicit case for JVM version 8 or 1.8 in system.properties
Added explicit case for JVM version 8 or 1.8 in system.properties

andycroll/heroku-buildpack-jekyll,brightbytes/heroku-buildpack-ruby-without-assets-precompile,pilotcreative/heroku-buildpack-ruby,Genius/heroku-buildpack-ruby,orenyk/heroku-buildpack-ruby,pilotcreative/heroku-buildpack-ruby,heroku/heroku-buildpack-ruby,instacart/heroku-buildpack-ruby,instacart/heroku-buildpack-ruby,Scalingo/ruby-buildpack,mattmanning/heroku-buildpack-ruby-jekyll,makifund/heroku-buildpack-ruby,zunda/heroku-buildpack-ruby,makifund/heroku-buildpack-ruby,brightbytes/heroku-buildpack-ruby-without-assets-precompile,jonseaberg/heroku-buildpack-turbo-sprockets,heroku/heroku-buildpack-ruby,zunda/heroku-buildpack-ruby,donnykurnia/heroku-buildpack-ruby,jonseaberg/heroku-buildpack-turbo-sprockets,mattmanning/heroku-buildpack-ruby-jekyll,Genius/heroku-buildpack-ruby,ericboehs/heroku-buildpack-ruby,Scalingo/ruby-buildpack,donnykurnia/heroku-buildpack-ruby,orenyk/heroku-buildpack-ruby,ericboehs/heroku-buildpack-ruby,andycroll/heroku-buildpack-jekyll