Merge branch '6381-increase-apps-php-upload-limit' into 'develop'

apps: Increase PHP post and upload limit to 100M.  See #6381

Closes #6381

See merge request ispconfig/ispconfig3!1629

server/conf/apps_php_fpm_pool.conf.master

@@ -17,4 +17,7 @@ pm.max_spare_servers = 5
 chdir = /
 
 ; php_admin_value[open_basedir] = /var/www/apps:/srv/www/apps:/usr/share
-php_admin_flag[magic_quotes_gpc] = off
\ No newline at end of file
+php_admin_flag[magic_quotes_gpc] = off
+
+php_admin_value[post_max_size] = 100M
+php_admin_value[upload_max_filesize] = 100M