Refactor using object oriented approach
Fix emitter not defined issue
Minor refactor and output format improvements
Refactor
Update docker-promisified test
Test Server constructor
Test _getKey
Test get-docker method
Skip get-config tests for now
Test get-images
Improve _getKeys error throwing
Test getContainers
Test status
Refactor get image
Handle build response tests
Get container tests
Per line stream tests
Cleanup container tests
Start container tests
Up tests