Created: Added Sandbox fluent-plugin-secure-forward.

Add testing environment of [fluent-plugin-secure-forward](https://github.com/tagomoris/fluent-plugin-secure-forward).

**merge -> OK**

This cookbooks is based of [Berkshelf](http://berkshelf.com/).

![2013-11-07 17 19 29](https://f.cloud.github.com/assets/72997/1490078/d0e87d9e-478a-11e3-9f3e-3a659c913ac6.png)