CB 2: Make all the things use wants-attrib for smart attribute injection. [7/8]

This pull request series switches the core Crowbar framework to be
smarter about injecting just the attributes that a role declares that
it needs, instead of just smashing everything that could be in scope
together.


 crowbar.yml                                        |  2 --
 .../barclamp_chef/app/models/barclamp_chef/jig.rb  | 16 +++++-------
 .../app/models/barclamp_chef/solo_jig.rb           | 30 +++++++++++++++++-----
 3 files changed, 30 insertions(+), 18 deletions(-)

Crowbar-Pull-ID: dccf04341e8a02b81a47fd321efe6c0256033410

Crowbar-Release: development