Optimise way we setup env testing in jenkins.
- used systems were updated (I just preinstalled more software)
- added version of each box that we are downloading (perviously we downloaded the oldest and prepare everything from beginning)
- hide output of some operations (bind installation and cert generation jenkins weird logging system save one sign per line which resulting in generating +16k not very useful log lines per one setup! 12 setups in each pkg and tarball tests which makes ~380k lines of useless log)
I am not sure how much time we will save by merging this, I know that logs in jenkins will be reduced hugely. @manu will like this