New Config Engine - change format of parse_option return result + new integration tests
New Config Engine - integration test for 'options'
New Config Engine - scoping rollout implemented, integration test for scopes
New Config Engine - integration test for custom
New Config Engine - improved error message handling, new tests (unit and integrations)
small fix
New Config Engine - allow to pass option hash when declaring command
New Config Engine - implement alias for commands
New Config Engine - deprecated commands support implemented
New Config Engine:
1) $context localized, actually was a bug
2) warnings implemented + tests
3) deprecated commands produce warnings + tests
New Config Engine - a bit refactor of parse_options