Remove command plugins, command interface from core, etc.

Vagrantcloud selfhosted

Amazon Instance Builder Docs Still Reference Deprecated S3Endpoint

Update document about qemu builder for [GH-1407].

Fix detecting guest additions URL

provisioners/ansible-local: always use an inventory file

builder/qemu: add ability to set cache mode for disk

updated step_clone_vmx.go to work with vmx files using sata

figure out VirtualBox version on FreeBSD

Update SaltStack provision to https

builder/parallels: Default cdrom0 should be disconnected

post-processor/vsphere: fix object address by appending "/"

Merge branch 'fix_qemu_size_argument' of https://github.com/berendt/packer into berendt-fix_qemu_size_argument

Conflicts:
	website/source/docs/builders/qemu.html.markdown