add warden infrastructure template

* move static IP configuration into infrastructure-specific templates.
* make catalina_opts overrideable for login/uaa
* add postgres job, default to 0 instances (unused in AWS)
* allow configuration of persistent disks on CC
* allow disabling disk quotas and other warden-in-warden settings
* allow configuration of directory server protocol
* allow configuration of collector instance count
* allow configuration of UAA no_ssl
warden infrastructure: defaults for dea memory/disk
add warden template network generator script
set drain script timeout to 0 for warden cpi

added new property: dea_next.drain_timeout
change cc default logging level to debug2

info has basically no logging
add dummy secrets to warden infrastructure
Merge branch 'spiff-warden-cpi'
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Jeff Schnitzer and Ryan Tang:
     Implement deprovisioning of v2 service instances. ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/11431134 )
     Implemented "last mile" of unbind v2 ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/11430204 )
  Alex Jackson:
     fix CI ( Travis finished: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/11428281 )
default persistent disk to 0, not nil

has to be an integer; 0 is ignored by bosh (and is the default already)