For networks that have multiple subnets, we may want to target a single
subnet. OpenStack doesn't let you target a single subnet in a network
and so you need to make a port.
Tested and verified using "make website".
Fix up the vmware, vbox and qemu builder and communicator docs.
Sort more things in alphabetical order.
Use backtick delimiters for values.
Wrap long lines to 80 characters.
Show actual default value for boot_wait.
Copy vrdp_bind_address info from vbox iso to vbox ovf builder.
Show defaults for vmx_remove_ethernet_interfaces.
Show default port values for ssh in vbox ovf builder.
Remove executable bit on openstack builder doc.
Show default for skip_compaction in vmware vmx builder.
Add a bunch of missing periods.
Remove a few redundant commas.
RFC952 restricts hostname not to use underline(_) and period(.), so
private cloud with legacy DNS system does not allow just to use
image_name for name of server.
Add instance_name config option for servers which packer creates to
make instance_name configurable. If instance_name is not specified,
by default it works like the past using image_name for instance_name.
add reuse_ips option and use it to control whether openstack builder
will attempt to reuse existing unassigned floating ips rather than
allocating a new one.
fix#4551
