v0.3.0

Introducing Head Asset Tracking (Turbohead)

Changes
#123

• More robust js tests
• Fix flaky test breakages in ruby land
• Introducing Turbohead:
  • script and link tags in the document head with data-turbolinks-track are now managed through turbograft
  • link tags are modified using as few changes as possible to match the new set of tracked assets
  • script tags are inserted as they are encountered, and the page is refreshed if the source of an existing script changes for the same data-turbolinks-track-as value
  • look forward to comprehensive documentation for this soon :)