Use chef-solo for all core Crowbar barclamps. [4/10]

This pull request has the following changes:

* Add a chef-solo jig that uses chef-solo to make changes to nodes.
  The chef jig still exists, but it is not used or installed by
  default.
* Port all roles that used the chef jig to use chef-solo, making
  whatever minor fixups are needed along the way.


 chef-solo                                          |  1 +
 chef/cookbooks/provisioner/providers/bootfile.rb   |  2 ++
 .../provisioner/recipes/setup_base_images.rb       | 14 ++++-------
 .../templates/default/default.elilo.erb            |  2 +-
 .../provisioner/templates/default/default.erb      |  2 +-
 chef/roles/provisioner-dhcp-database.rb            |  2 +-
 crowbar.yml                                        |  8 +++----
 .../app/models/barclamp_provisioner/server.rb      | 28 ++++++++++++++++++++++
 8 files changed, 42 insertions(+), 17 deletions(-)

Crowbar-Pull-ID: bbc20a06dbbdfd0b2f1725d18b4220bf28a9a536

Crowbar-Release: development