Remove unsupported debug option, deduce download path, improved output readability

• Debug option is omitted as it is not supported for goss validate
• Download path is correctly deduced if URl is provided
• Add format options config option for the output.

Packer 1.5+ API support

• support for the packer 1.5+ API
• add retries
• add timeouts

Add var file support

Support passing a variable file to leverage goss templating feature

[Fix] Usability improvements and new features

v0.2.0 release had bad binaries, so I'm cutting a new release to avoid confusion

[PR#3] Correct example in the readme
[PR#7] Update packer-provisioner-goss.go
Custom Gossfile suport (the --gossfile flag)
Tests now supports uploading directories - ignore support disabled (for now)
Username and Password for auth to download goss from custom authed locations
SSL cert check disable option - for internal services using self-signed certs
[PR#11] Make output format configurable

Usability improvements and new features

• [PR#3] Correct example in the readme
• [PR#4] Update packer-provisioner-goss.go
  • Custom Gossfile suport (the --gossfile flag)
  • Tests now supports uploading directories - ignore support disabled (for now)
  • Username and Password for auth to download goss from custom authed locations
  • SSL cert check disable option - for internal services using self-signed certs

Initial Release

This release has basic support for installing Goss on the target machine, uploading a goss.yaml file to the remote directory and executing the tests with goss validate.