custom root folder and little fixes

confs/php.ini

@@ -747,7 +747,7 @@ include_path = ".:/usr/share/php7"
 ; see documentation for security issues.  The alternate is to use the
 ; cgi.force_redirect configuration below
 ; http://php.net/doc-root
-doc_root = /www/
+doc_root = %ROOT_FOLDER%
 
 ; The directory under which PHP opens the script using /~username used only
 ; if nonempty.

confs/serve-files.conf

@@ -1,3 +1,3 @@
-root /www;
+root %ROOT_FOLDER%;
 index index.html index.php;
 try_files $uri $uri/ =404;