U2t needs to be prepared for qt5

Example: until the code for the phone goes public We can go through all this and add tags for upgrade
EXAMPLE: Shell.qml top 4 lines

import QtQuick 1.1
import Unity2d 1.0
import "launcher"
import "common/utils.js" as Utils

change to

import QtQuick 1.1
//import QtQuick 2.0
import Unity2d 1.0
import "launcher"
import "common/utils.js" as Utils

So when it is time to move over to Phone code just un-comment and remove one line.

Here is a list of different things

http://qt-project.org/wiki/QML1-vs-QML2