(DP) Support Tip Ubuntu 14.04 with kernel version 4 shown by blue icon in GUI clients context

Normally UNIX/Linux clients are depicted by a green icon in client listing.
Only this Ubuntu 14.04 client with a manually upgraded kernel ( 4.2.0-42 ) was shown by a blue icon with white question mark.

DP 9.06 b107 per default supports only Linux kernel 3.
Full support of kernel 4 will be introduced by coming DP 9.08.