Overlay with Qt 4.5 snapshot ebuilds

Recently stumbled over this blog post: http://labs.trolltech.com/blogs/2008/12/04/how-kde-4-is-blocking-qt-45/

Looks like it's usable for KDE 4 trunk already, and the improvements to the WebKit engine got me interested in trying it. So I spend 2 hours in creating ebuilds for the Qt 4.5 snapshots - based on the split Qt 4.4.2 ebuilds in portage.