Change permission on privatebin data directory

Avoids server error

src/freedombone-app-privatebin

@@ -55,6 +55,7 @@ function secure_privatebin {
 
     chown -R ${rootuser}:${htgroup} "${pbpath}/"
     chown -R www-data:www-data "${pbdata}"
+    chmod 755 "${pbdata}"
 }
 
 function logging_on_privatebin {