Use chef-solo for all core Crowbar barclamps. [1/10]

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.


 crowbar_framework/app/models/barclamp.rb |  2 +-
 crowbar_framework/app/models/jig.rb      | 25 ++++++++++++++++++++++++-
 crowbar_framework/app/models/run.rb      | 12 +++++++++---
 3 files changed, 34 insertions(+), 5 deletions(-)

Crowbar-Pull-ID: bbc20a06dbbdfd0b2f1725d18b4220bf28a9a536

Crowbar-Release: development