Update README with the way asset paths should work
Update asset specs to use correct paths

* Add specs for asset requests with wrong paths
Require namespacing by type in asset paths
Add test for requests for assets of unknown types
Add spec for vendored assets
Include vendor/assets in sprockets asset paths
Update generator for new asset paths

* Generate jquery and bootstrap into vendor/assets
Include all of vendor asset trees in generator
Be consistent with semicolons in CSS asset tests
Add semicolon to vendor JS in assets fixture

* /cc @jessicard
Merge pull request #12 from jakeboxer/asset-paths

Improve asset paths