Qt Quick and Qt QML examples need to be sorted

This page doesn't exist for the 5.0 snapshot: http://doc-snapshot.qt-project.org/4.8/qdeclarativeexamples.html

-Go through the material (example pages, example code, and overviews which link to the examples) and fix missing images, snippets, and make sure they run.
-Remove the references to the examples from the overviews because it is best to remove them for now.