packer/rpc: Replace MuxConn with Yamux

builder/vmware-vmx: add floppy_files support

builder/vmware: add VMWare Player 6 support

builder/virtualbox: implement `iso_interface` setting

builde/vmware: skip adding floppy again in vmx_data_post step

website: add required value for openstack_provider for rackspace example

Merge branch 'additional-user-variables' of github.com:nBerg/packer into nBerg-additional-user-variables

Conflicts:
	builder/amazon/common/run_config.go

post-processor/vagrant: Change creating boxes for customizing metadata.json

provisioner/ansible: Fix Ansible inventory path on Windows

builder/amazon-instance: Debug the evaluated bundle commands