A collection of utilities for QML

Contents:

*** JSONListModel

A QML ListModel for JSON data.
Features:
  - API matching with XMLListModel, for ease of use
  - file-based and string-based data
  - Automatic model roles from JSON element properties
  - Complex JSON document handling with JSONPath, XPath for JSON (http://goessner.net/articles/JsonPath/)
  - Advanced querying and filtering expressions