[ev3dev-jessie] fix console-setup.service
[ev3dev-jessie] fix beep pressed
[ev3dev-jessie] remove input port 1 debug
[ev3dev-jessie] add i2c-tools to pinned packages
[ev3dev-jessie] systemd configuration
add feature to blacklist problematic preinst scripts
remove no-install-recommends apt-preference

no-install-recommends resutls in broken packages in many cases
ruby1.9.1 is no longer in jessie
use aptdefaultrelease to prefer ev3dev on inital apt-get

This works much better that pinning individual package versions
use default python package

This way we don't run into problems when the version changes
set default value for kernel command line

flash-kernel has a new option that lets us customize the kernel command line.
it has a default value of quiet which we don't want