Initial creation of a deprecated-path script

This script is for installed portage bin/ scripts that have been moved from their original installed path.
It will search the PATH for the script called and run it from there.
emerge: --autounmask-write if --ask (bug 481578)

Signed-off-by: Alexander Berntsen <bernalex@gentoo.org>
Offer to read news while calcing deps (bug 517310)

Signed-off-by: Alexander Berntsen <bernalex@gentoo.org>