All the URI parsing logic have been abstracted in the AbstractUriElement class.
The Link class is now a child of AbstractUriElement.
Added an Image class to crawl images and parse their src attribute,
and selectImage, image, images methods in the Crawler (the image version of the equivalent link methods).
2.5.0
[BC BREAK] The default value for checkbox and radio inputs without a value attribute have changed
from '1' to 'on' to match the HTML specification.
[BC BREAK] The typehints on the Link, Form and FormField classes have been changed from
\DOMNode to DOMElement. Using any other type of DOMNode was triggering fatal errors in previous
versions. Code extending these classes will need to update the typehints when overwriting these methods.
2.4.0
Crawler::addXmlContent() removes the default document namespace again if it's an only namespace.
added support for automatic discovery and explicit registration of document
namespaces for Crawler::filterXPath() and Crawler::filter()
improved content type guessing in Crawler::addContent()
[BC BREAK] Crawler::addXmlContent() no longer removes the default document
namespace
2.3.0
added Crawler::html()
[BC BREAK] Crawler::each() and Crawler::reduce() now return Crawler instances instead of DomElement instances
added schema relative URL support to links
added support for HTML5 'form' attribute
2.2.0
added a way to set raw path to the file in FileFormField - necessary for
simulating HTTP requests
2.1.0
added support for the HTTP PATCH method
refactored the Form class internals to support multi-dimensional fields
(the public API is backward compatible)
added a way to get parsing errors for Crawler::addHtmlContent() and
Crawler::addXmlContent() via libxml functions
added support for submitting a form without a submit button
