Basic logging behavior, log levels
More tests of the logging facility
Functionality split to make test more independent

Code reorganized so that each test runs on its own set of data
Merge pull request #28 from sustr4/specupdate

Updated logging specs
Fixed class attributes and class names

* Fixed inheritance for class attributes (from Entity down)
* Fixed class names for os_tpl and resource_tpl
Fixed attribute readers for Occi::Infrastructure

* Using simplified Hashie::Mash syntax
Fixed attribute readers for Occi::Core

* Using simplified Hashie::Mash syntax
Merge pull request #29 from arax/entity_attributes

Fixed entity attributes and mixin class names