(ui): QML applications are broken under Windows
Description
All applications using qml are now functional on Windows, for instance Tuto01BasicQml, Tuto05EditorQml, Tuto06GuiQml, but also Qt applications that just use a QMl widget like the activity sequencer.
Several fixes were brought to fix this:
- determine qml plugin path at runtime instead of build time. We use the same strategy for Qt plugins.
- install qml plugins correctly when building an installer
- port deprecated QtQuick1 stuff to QtQuick2
Closes #794 (closed)
How to test it?
Run the applications mentioned above on Windows and Linux.