Generate disambiguation pages

Now that we have QML module identifiers, the standard way to link to, e.g., a QML property, is to construct the link from the QML module name, the QML component name, and the property name, like this:

\l

{QtQuick2::Item::anchors.top}

{top}

But there is a lot of documentation that refers to things without the QML module identifier, e.g.:

\l{Item::anchors.top} {top}

These references without the QML module identifier should still work, but they don't because qdoc complains that the QML module identifier is missing, and it really can't determine whether the writer wants to link to the anchors.top property in QtQuick 1 or the one in QtQuick 2.

So this task creates a disambiguation page for each QML element/component that exists in more than one QML module. The links without the QML module identifier then can link to a list of possibilities on the disambiguation page. When the user clicks on the link without the QML identifier, he is taken to the appropriate list on the disambiguation page, where he chooses the appropriate link to the final target.