Change the admin node's bootenv from local to disk.
Install Postgres.
Fix up barclamp_install to deal with postgres.
Merge pull request #1912 from VictorLowther/pull-req-master-1894f0c22097ce2fe14718ee0722577a3af82967

https://github.com/crowbar/crowbar/pull/1912

Merged by devtool for cloudedge
Fix bug where installing crowbar hangs.  This was due to pull

https://github.com/crowbar/crowbar/pull/1909

which needed to be manually merged to roxy.
Fixed bug in install-chef.sh in both pebbles and roxy where the
/var/run/crowbar dir must exist before chef_or_die is called to
prevent installation hang.
Add db:create as needed for psotgres support.
Add instructions on how to configure Postgres.
Merge pull request #1914 from cdearborn/pull-req-master-1cfee27b998d6388ba6f06180574f1e27e8ecdd8

Fixed issue where crowbar install hangs [1/1]
Merge pull request #1915 from VictorLowther/pull-req-master-a91d010e6f77c4fc84104247bc7752f73dab5b4d

https://github.com/crowbar/crowbar/pull/1915

Merged by devtool for cloudedge
tweak dev based on postgresql change