Feature/testing framework

Implements a testing framework...

- [x] Uses Travis CI
- [x] Performs `foodcritic`, `rubocop`, and `chefspec`
- [x] RSpec/chefspec tests for **ALL** resources

```
Finished in 1.69 seconds
3 examples, 0 failures

ChefSpec Coverage report generated...

  Total Resources:   3
  Touched Resources: 3
  Touch Coverage:    100.0%

You are awesome and so is your test coverage! Have a fantastic day!
```