amazon/common: Added AMI CopyImage support
Make sure ami_regions are valid
packer: add mock implementations and more template tests
common/command: more tests for filtering builds
common/command: error if only/except points to bad build
Make it possible to customize the VMware virtual disk type id.
packer/rpc: get rid of panicable case
Document the `disk_type_id` parameter.
communicator/ssh: respect interrupts by not looping on retyr [GH-327]
packer/rpc: fix build by missing import
Merge pull request #328 from jbronn/vmdk_type

builder/vmware: Enable customization of VMDK type with `disk_type_id`
Update CHANGELOG
Merge pull request #322 from jmassara/ami_region_copy

amazon/common: Added AMI CopyImage support