[WIP] Support `test-kitchen`
[common] Deleted <root>/test directory.
[common] Install `test-kitchen`, etc.

- Install `test-kitchen`
- Update `Gemfile.lock`
- Update `.chef/knife.rb`
- Modify the `berks` command options
[Base] Support the test-kitchen.

- Add `.kitchen.yml`
- Install dependent cookbooks via `Berkshelf`
- Add tests for `base` cookbook

In order to enable automated tests:

- Do not change SSH port, when testing environment.
[Docker] Support the test-kitchen.

- Add `.kichen.yml`.
- Add `Berksfile` to download the dependent cookbooks.
- Delete the unnecessary conditional.
[fluentd-custom] Support `test-kitchen` and also Ubuntu 14.04.

- Add `.kitchen.yml`.
- Add `Berksfile`.
- Do not configure IPTABLES settings, when testing.
- add tests

As `td-agent` does not surppot Ubuntu 14.04,
install `td-agent` version 2, instead of version 1.

Due to this modification, use `td_agent_gem` resource.
This `td_agent_gem` resource automatically detects which `gem` binary for `td-agent` to use,
and install the required fluentd plugins, using that `gem` binary.
[nginx] Support `test-kitchen`

- Support `test-kitchen`
- Add tests
- Enable toggling `iptable` configuration.
[Growthforecast] Support `test-kitchen`

- Support `test-kitchen` environment.
[jenkins] Support `test-kitchen`
[Ruby] Support `test-kitchen`

- Support `test-kitchen`
- Add tests
[kazu634] Support `test-kitchen`

- Support `test-kitchen` (.kichen.yml / Berksfile / metadata.rb)
- Add tests.
- refactor recipes.
[monit] Support `test-kitchen`

- Support `test-kitchen`
- Add tests
[nagios] Remove `nagios` cookbook.
[tech] Remove `tech` cookbook.
[webapp] Support `test-kitche`

- Support `test-kitchen`
- Add tests
[Wordpress] Support `test-kitchen`

- Support `test-kitchen`
- Refactoring
- Add tests
Merge pull request #124 from kazu634/test-kitchen

Support `test-kitchen` and Ubuntu 1404.