bugfix emerge type for slotted packages
implemented some sugestions from nico
Merge branch 'bugfix_type__package_emerge' of https://github.com/dheule/cdist
++changes

Signed-off-by: Nico Schottelius <nico@freiheit.schottelius.org>
Make __package_apt even more non-interactive
Make __package_{update_index,upgrade_all} quieter

And more non-interactive for the APT case.
+release

Signed-off-by: Nico Schottelius <nico@freiheit.schottelius.org>
correct release date for 3.1.9

Signed-off-by: Nico Schottelius <nico@freiheit.schottelius.org>