Specify name in metadata to fix Ridley::Errors::MissingNameAttribute

In Ridley 3.0 ( used in berkshelf 3.0 ) it's mandatory to declare name
attribute in cookbook's metadata.rb )

Otherwise we get this error:

```
Ridley::Errors::MissingNameAttribute The metadata at '/var/folders/ty/tgf8y4xd55s5hxvmv4xbg7sc0000gn/T/d20140416-98615-1pwiypi' does not contain a 'name' attribute. While Chef does not strictly enforce this requirement, Ridley cannot continue without a valid metadata 'name' entry.
```