hello , please ca n you try to add a plugin or a module allow as to change switch php version or use multi php version for different website , if you can do this Ajenti will be my best control panel
+ web mail interface ....
And please do your best to update Ajenti because it's a good application (doesn't support Debian 7 or 8 yet)

keep going up :)

and it seem like ajenti support in sleeping mode or hibernate pefffffffff