provisioner/puppet-server: Add ignore exit codes option

provisioner/shell: randomize default script name

post-processor/vagrant-cloud: retry uploads [GH-2167]

Added new compress post-processor from Vasiliy Tolstov

Refactored test so it's more DRY and also rearranged things so the test cases and configs are at the top of the file

update the documented datatype for facter to 'object of key/value str…

update the documented datatype for facter to 'object of key/value strings' for both puppet provisioners

builder/parallels: Add mock for "SetDefaultConfiguration" method

Fixes unit test failures

Parallels: Apply default settings on the VM creation step.

This functions applies the default configuration to the virtual machine. Also, it disables some integration features
which should not present in the resulted VM image.

Functions are different in PD 9 and 10 structs because some additional options appeared only in Parallels Desktop 10 release.

remove image format from image name in qemu builder

builder/google: Adds support for using the internal IP rather than NAT IP in GCE

builder/amazon-chroot: Only unmount if path is actually mounted

WIP 2/4 tests passing, still need to re-implement ZIP and bare compression files and do some cleanup

builder/qemu: Force qemu to use a VNC port by setting vnc_min_port == vnc_max_port

Similar to Issue #1288, this prevents a crash when we set the VNC
minimum port equivalent to the VNC maximum port

communicator/ssh: support for bastion SSH