- Updated parser to Fluent Syntax 0.3

    Added support for tags and indented multiline text. Removed quoted values.

  - Added the Serializer module

    ```javascript
      import { parse } from '../src/parser';
      import { serialize } from '../src/serializer';

      function pretty(text) {
        const ast = parse(text);
        return serialize(ast);
      }
    ```