add the general kitCommand parameter `simulate[]` to avoid the execution of the kitCommand and to show the command expression, without the parameter `simulate[]`
fixed a routing typo for isFilterAvailable()
now the update clear the Twig Cache Files at finishing the installation/update of extensions
automatically remove kitCommand Parameter entries (PID) which are older than 48 hours
add debug info if the Twig Cache is cleared by a kitCommand with parameter `cache[0]`
add debug information