The following folders are required for the nova proposal on ubuntu.

* /var/cache/nova/
* /var/lib/nova/.ssh/

Signed-off-by: JuanJose 'JJ' Galvez <jj.galvez@inktank.com>
When creating the SSH key we need to specify the shell
otherwise /bin/false is used and creation fails.

Signed-off-by: JuanJose 'JJ' Galvez <jj.galvez@inktank.com>
Merge branch 'pull-req-release-roxy-master-09aebed47f0be36049d2759998afa2dbaee785c6' of https://github.com/jgalvez/barclamp-nova into feature/wip-dt-build/master

Conflicts:
	chef/cookbooks/nova/recipes/config.rb
typo fix and fix merge error