Qt updates

One of the most requested upgrades to Vidalia is a better map of the world. We looked into a few different technologies and decided on KDE's Marble interface. Marble enables an accurate mapping of nodes according to their geolocation, allows for future enhancements such as "click a country to start or end your Tor circuit", and plugins for extra data views. This also gives us the ability to use Qt's Webkit browser to display custom information about nodes, circuits, or anything else in a pop-up window. An anonymous funder covered the costs involved in developing this feature. We thank them for their support. read more »