message: Add source button to files
diff: @@ -12,7 +12,7 @@ module.exports = class BlockView extends Backbone.View
  openSource: (e) ->
  analytics.track.click "Block source opened"
  - url = @block.source.url
  + url = @block.source.url or @block.kind.file_url
  e.preventDefault()
  e.stopImmediatePropagation()
  