Getting network barclamp unit tests working again.

This includes:
- Rename of BarclampConfig, BarclampInstance, AttribInstance, and RoleInstance classes fan out
- Rails Engine conversion
- Removal of Crowbar 1.0 proposal and service objects
Merge pull request #146 from cdearborn/pull-req-master-fd8b6516ed91645f2acb1ca198501df1597d772e

Merged by devtool for VictorLowther