NodeRole overlay from DeploymentRole [1/1]

In making the annealer run for tests, I needed to have reasonable noderole.data 
that was set from the deploymentrole information.

This pull completes that work and exposes it in the UI.


 crowbar.yml                                        |    2 +-
 crowbar_framework/Gemfile                          |    6 +---
 crowbar_framework/app/models/deployment_role.rb    |    2 +-
 crowbar_framework/app/models/node.rb               |    2 +-
 crowbar_framework/app/models/node_role.rb          |   12 +++++---
 crowbar_framework/app/models/snapshot.rb           |   14 ++++-----
 .../app/views/node_roles/_raw.html.haml            |   15 ++++++++--
 crowbar_framework/config/locales/crowbar/en.yml    |    3 ++
 doc/devguide/api/jig.md                            |   13 ++++++++
 doc/devguide/devtool-build.md                      |    5 ++--
 doc/devguide/documentation.md                      |   31 --------------------
 11 files changed, 49 insertions(+), 56 deletions(-)

Crowbar-Pull-ID: fe06f2708903a8015921f6660ccac07054ef250a

Crowbar-Release: development