deploy_in_place creates destination directory and sets symlink

When using deploy_in_place the destination directory will be set
as a direct symlink back to your checked out source.
Provide atomic revision-based deploys for production and remote hosts

The deploy_revision recipe configures a standard capistrano-style
deployment from a checkout on the instance to a known destination
path. There is support for marking branches as unstable so they
are not deployed to production by accident.