Modularized for Qt 5

Still missing sth from qmake, it doesn't support non c++ module
correctly yet(there is no CXX_MODULE in our project).

Change-Id: I9a6a754e863b51b3e3a4b1eaf864ddab24e92f75
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>