Add name in metadata.rb, bump version

If use chef 12.0~, chef required name attribute in metadata.rb.

https://docs.getchef.com/release_notes.html
> New settings for metadata.rb The metadata.rb file has two new settings: issues_url and source_url. These settings are used to capture the source location and issues tracking location for a cookbook. These settings are also used with Chef Supermarket. In addition, the name setting is now required.