On CentOS7, ``pc-1.0'' qemu-kvm machine type are not supported.

Supported machines are:
none                 empty machine
pc                   RHEL 7.0.0 PC (i440FX + PIIX, 1996) (alias of pc-i440fx-rhel7.0.0)
pc-i440fx-rhel7.0.0  RHEL 7.0.0 PC (i440FX + PIIX, 1996) (default)
rhel6.5.0            RHEL 6.5.0 PC
rhel6.4.0            RHEL 6.4.0 PC
rhel6.3.0            RHEL 6.3.0 PC
rhel6.2.0            RHEL 6.2.0 PC
rhel6.1.0            RHEL 6.1.0 PC
rhel6.0.0            RHEL 6.0.0 PC
q35                  RHEL-7.0.0 PC (Q35 + ICH9, 2009) (alias of pc-q35-rhel7.0.0)
pc-q35-rhel7.0.0     RHEL-7.0.0 PC (Q35 + ICH9, 2009)

add disk size to google compute

parallels-iso: ISO not removed from VM after install [GH-1338]

Also remove floppy and prl-tools ISO if applicable.

website: typo in vagrant cloud 

Update GCE source_image in the docs

builder/googlecompute: rename "Gsutil" to "Gcloud" now that we're updating "gcloud" and not "gsutil".

Also renamed files accordingly.

builder/googlecompute: added support for all standard VM images

[GCE] google compute builder is broken, gsutil update fails in newer images

Do not re-add floppy disk files to VMX

This commit fixes errors like this in the vsphere post-processor when using floppy files in the builder step:
Error: File (/var/folders/zl/57c1vmr532z_ryf1scw53_b9ycmxh7/T/packer964492999) could not be found

The configure VMX step re-adds the floppy files, so we need to configure the VMX and _then_ clean the VMX in that order.

Added support to use templates for more fields in null-builder and amazon-builder

builder/amazon: support for enhanced networking

website: Added documentation page for environmental variables. #1130

website: Fixed Rackspace example

builder/vmware/esxi: checksum iso upload to not always upload

builder/virtualbox: Accept VirtualBox release candidate version

packer: Fixed typo in error message

website: Specifically call out the comma after `"builders": [...]`

Install gox during build time

post-processor/vagrant: hyper-v