SteamOS update 140 pushed to alchemist_beta

plymouth - merge latest upstream and add script support for system update notifications



rsyslog - upstream security fix - CVE-2014-3634



unattended-upgrades - update to latest upstream to fix debian bug #743594



add the following new packages to the steamos repo as requested by this thread

bash-completion

file-roller

gedit

htop

iotop

lsof

nautilus-open-terminal

pastebinit

python-pip

zip



This fixes up the unattended-upgrades issue that bit us in 138. Changing the auto-update script always makes me a bit nervous, so please watch out for any new issues here.