- do deleteLater on QObjects.
- Queued QQuickFramebufferObject updates.
- Clean Linphone SDK window ID on Camera deletion (Qml side, it cannot be done on C++ beacause of asynchroneous signals).
- Do cleaning synchronization between calls window and fullscreen.
- Avoid to rebuild all entries of ChatRoom when below minimum limits (keep this feature to avoid loading time when initiate the call).