Primitives in model lists and Polymer 2.0.0

New features

• Model lists can now use "primitive" types in addition to beans. In particular, List<String> is now fully supported as the type of model properties.
• Polymer 2.0.0 is used in all demos and examples.

Fixes

• No longer setting the async attribute property for HTML imports because of browser compatibility issues
• List.clear() can be used for model list proxies even if the item type doesn't have a default constructor.
• The mechanism for resolving @Id elements has been improved to work consistently in all browsers.

Breaking changes

• @Id does no longer work with elements where the id attribute has been set dynamically: the id value must be present in the HTML template file.

Demos

• Added a Todo list demo that uses @Id.

All changes

https://github.com/vaadin/flow/milestone/32?closed=1