Added iptables recipe
Update README with new recipe
Merge pull request #18 from juliandunn/COOK-2647

[COOK-2647] port_ssh iptables template has no corresponding recipe
convert test kitchen support to v1.0alpha
release v1.2.0
increment version for development
update to new bucket for boxes
[COOK-3304] Fixing an issue with Dynamic ListenAddress when specifying the hash of listen_interfaces
Update CHANGELOG format
Fix whitespace
Fix README format
Version bump to v1.2.2
Bump devodd release
Hash support for ssh_config

If `['openssh']['client']` is a hash, the template generates a `Host`
for each of the keys and uses the associated values to populate the
host-specific settings.

* templates/default/ssh_config.erb:
Corrected logic for settings

Now also works with string values.

* templates/default/ssh_config.erb:
Updated the README

Added description for the `Hash` configuration option.

* README.md:
Added an example to the README

The example shows how to use a hash to configure `/etc/ssh/ssh_config`
for different hosts.

* README.md:

Signed-off-by: giorgio-v <giorgio@refactor.it>
Merge branch 'ruby-hash-support' of github.com:giorgio-v/openssh into ruby-hash-support