Fullscreen/yt — pull request #77 by stavro (2014-08-21 18:39:19+00:00)
Title: Add asset#update via patch

Allows for updating metadata fields of as asset

```ruby
asset = Yt::Asset.new(id: 'A435476563920238', auth: content_owner)
asset.update metadata_mine: { customId: '7cj0MhObCQk' } #=> true
```