XML Explorer full changelog

· Added 'Copy Attribute XPath to Address Bar' feature.
· Added methods for decoding node text and value from Base64 encoded strings, and copying them to the clipboard.
· Added 'ChildNodeDefinitions' to the options, which allows for easier navigation of parent-child and ID-IDREF relationships. Discovery happens on-demand, as nodes are expanded and child nodes are added. Nodes can now have 'virtual' child nodes, defined by an xpath to select an identifier (usually relative to the current node like @id), and another xpath to find matching virtual child nodes using that identifier, like //*@parentId='{0}'. Standard String.Format syntax is used.
· Improved the expressions pane with a proper toolbar with buttons to launch, edit, delete, and filter expressions.
· Changed expressions pane behavior, selection no longer executes expressions, only activation (double-click or enter to select, hold shift to launch new tab).
· Improved performance of syntax highlighting.

· Added an 'Open URL' button and File menu item, will download and open XML files from a user-specified URL. Added handling of certificate errors and basic HTTP authentication.
· Added additional methods to XPathNavigatorTreeView to enable better integration into 3rd party applications.