[Development] Deprecating modules with 5.5

[Knoll Lars]

Hi,

I’d like to mark a few modules as deprecated with 5.5, and most likely
remove them from the binary packages with 5.6. These modules are:

* Qt WebKit
* Qt Declarative (Qt Quick 1)
* Qt Script

All of these modules are by now a couple of years old, don’t receive
updates above the bare minimum and have a replacement that is actively
being developed in Qt 5.

Cheers,
Lars