* the very initial builder: just clones the VM
* removed post-processor
* builder now waits for IP address
* more separated steps
* clean up
* added run and shutdown steps
* added step connecting via ssh
* changed the BuilderId to a proper one
* added shutdown command, only echo works
* added cleanup
* removed wainting for VM to stop, removed error on the non-zero exit status
* removed BuildSuccessFlag
* refactored config structures; fixed interpolation of json template
* the rest of configuration refactoring
* removed duplicated parameters from Config
* removed duplicated parameters drom Config
* changed BuilderId and Artifact
* create a dedicated step for VM hardware configuration
* merged StepSetupCloningEnv into StepCloneVM
* improved cleanup
* added proper handling of 'disconnected' command exit status; added guest os shutdown before halting the machine [in case when no shutdown command is given]
* refactored non-conventional variable and field names
* removed redundant fields from Artifact
* removed the success field at all
* removed ArtifactFiles
* removed unnecessary warnings
* minor change in parameters structure
Michael Kuzmin
Elizaveta Tretyakova