Add `--retcode-passthrough` to salt-call so the build fails when there is an error running `highstate`

Create temporary copy of symlink before uploading, fixes #1765

Updated Amazon documentation to reflect use of credentials file
[skip ci]

Allow manifest_file to be a directory for Puppet Masterless Porvisioner

Fix link to shell provisioner [skip ci]

Escapes cp alias, fixes #1656

Changed type of version.number / vagrant-cloud post-processor
Fixes #1735 

Added Chocolatey as alternative installation [skip ci]

Fix typo: One attached -> Once attached [skip ci]

A few weeks ago ... the version.number changed from an integer to a
semver based string.

I guess version.number and version.version are equals now. So
version.version can be used.

This commit should fix #1735

fix passing bootstrap_args to bootstrap script (issue #1235)

Updated Amazon documentation to reflect the precedence rules putting ~/.aws/credentials files ahead of env vars. Ref #1612

update default output to reflect current packer release

Updated the spot price docs

Puppet is removing support for imports and node inherits. This change will support directories as manifests

https://docs.puppetlabs.com/puppet/latest/reference/dirs_manifest.html
https://docs.puppetlabs.com/puppet/latest/reference/lang_import.html

fixed `packer --version` to show version again

Fix broken links in the DigitalOcean documentation

atlas post-processor on 32bit uint32 overflows int

post-processor/atlas/util.go:16: constant 4294967295 overflows int
Signed-off-by: BlackEagle <ike.devolder@gmail.com>

atlas post-processor unknown atlas.UploadartifactOpts field BuildId