* support multiple calls to the Attach() function from a single step
* run_progress_test.go changed so it's not sensitive to the name of the clone target directory
* applied code review comments also added _example/attachments
* applied code review comments also added _example/attachments
* applied code review comments also added _example/attachments
* Pretty Print when using rules (#440)
* Pretty Print when using rules (#440)
* fix a few formatting mistakes (#440)
* added test with rule and scenario outline (#440)