chore(net-misc/strongswan): remove, we don't use it right now

remove strongswan, we aren't using it right now.
fix(*): use new stateful_partition location

moving /mnt/stateful_partition to /media/state
fix(coreos-base/*): move /mnt/stateful_partition around

This bumps all of the ebuilds to use the new /media/state code.
fix(*): move /home/core/user to /home/core
fix(coreos-base): move images/dev to overlays/usr/local
fix(coreos-installer): get dev image location fix
bump(coreos-init): create /srv and /opt
Merge pull request #128 from philips/move-stateful-around

Move stateful around