Run apt-get update during solo/run and run-from-scratch

Run apt-get update in order for the apt-get install which does
the initial package install needed before chef runs to get
packages properly

Signed-off-by: Sandon Van Ness <sandon@inktank.com>
Added /etc/security/limits.d/remote.conf for Warren

Signed-off-by: Sandon Van Ness <sandon@inktank.com>