[Review] Request from 'KalabiYau' @ 'SUSE/connect/review_140602_add_status_model'

Please review the following changes:
  * d706f06 Implement status key
  * 39af21f Remove commented debugger
  * 7c1d52d Added specs for new functionality

bad wording.

```
Product.new('SLES', '12', 'ia64') == Product.new('SLES', '12', 'ia64') => true
Product.new('SLES', '12', 'ia64') == Product.new('SLES', '12', nil) => false
Product.new('SLES', nil, 'ia64') == Product.new('SLES', '12', nil) => false
```