Refs #3809 - Remove cops for empty lines
Refs #3809 - Use parentheses in method definitions
Fixes #6695: Adding two OS parameters with same name should raise an error
fixes #812 - new permissions model, user group role and nest support, role filters for better granularity
fixes #3099 - Adding parameters to locations and organizations
fixes #2741 - rails 3 syntax
fixes #2985 - remove #as_json method from AR models since rabl views used for API
fixes #2411 - move STI models in /models and /lib/foreman/models to sub-folders