builder/amazon-chroot: add mount_options configuration option

builder/qemu: default acceleration to tcg on Windows [GH-2284]

builder/amazon-chroot: various fixing and debugging of chroot builder

fix file download provisioner

allow import qemu builded artifacts

Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>

when file used with download direction we don't need
to check source on builder because it on machine.
Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>

These are needed for chroot builder to work

Merge branch 'issue_2080' of https://github.com/rickard-von-essen/packer into rickard-von-essen-issue_2080

Adding disable sudo support to salt masterless

Merge branch 'ansible-inventory-groups' of https://github.com/lyrixx/packer into lyrixx-ansible-inventory-groups

[vsphere post processor] Make ResourcePool optional. Upload the template to an specific host

Local shell provisioner

provisioner/shell: retry file delete [GH-2286]

resume download after fail