Added a default charset encoding
Added a default charset encoding

pierredup/packager-buildpack-php,mraymond/heroku-buildpack-php,nsg/dokku-buildpack-picocms,AlphaStaxLLC/heroku-buildpack-php-custom,ryosuzuki/php-buildpack,OKAMca/heroku-buildpack-php,Jonatasmz/php-buildpack,jstacoder/heroku-buildpack-php-1,nsg/dokku-buildpack-picocms,OKAMca/heroku-buildpack-php,Jonatasmz/php-buildpack,cachethq/cachet-buildpack,penciu/apache,penciu/apache,penciu/apache,ryosuzuki/php-buildpack,AlphaStaxLLC/heroku-buildpack-php-custom,CHH/heroku-buildpack-php,stof/heroku-buildpack-php,Scalingo/php-buildpack,Scalingo/php-buildpack,stof/heroku-buildpack-php,bobmaerten/dokku-buildpack-php,CHH/heroku-buildpack-php,jstacoder/heroku-buildpack-php-1,pierredup/packager-buildpack-php,stof/heroku-buildpack-php,OKAMca/heroku-buildpack-php,Scalingo/php-buildpack,AlphaStaxLLC/heroku-buildpack-php-custom,bobmaerten/dokku-buildpack-php,mraymond/heroku-buildpack-php,CHH/heroku-buildpack-php