Fullscreen/bh — pull request #40 by buren (2014-11-02 11:58:15+00:00)
Title: Ability to add as: :button to link_to.

Added `as: :button` option to `link_to` helper.

Example usage:

```ruby
link_to 'Home', url, as: :button, size: :lg, context: :info

link_to url, as: :button, size: :lg, context: :info do
'Home'
end
```