systemd now uses global.conf to affect container startup
admin scripts are now informative

Use the smitty function to print each command just before it runs.
This gives the admin better feedback about slow operations.
add admin script to destroy a running app+data container pair
be less verbose during build to avoid truncating wercker log

Avoid message on app.wercker.com:

    The logs have been truncated (max log size: 1500000 bytes).
add table of contents to readme
update systemd service unit on upgrade

045122c2 updates the unit file on build;
we should also update the file on upgrade.
add stock password-auth pam config
optionally enable duosecurity for multi-factor auth

The default is to **not use** duo.
You must edit your local configuration in order to enable duo.
See the readme, global.conf, and login_duo.conf for details.