Fix location and rpaths of qbs command-line tools on OSX.

Change-Id: I3393ac940b60b8741e503420d9d0b44c12423bcb
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>
QmlDesigner.ItemLibrary: Fix icon file path

Change-Id: I5f5b6fa3fc4b1445b4f51fb82765cff38c67525e
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>
Mark unused fields with Q_UNUSED.

.. to suppress -Wunused-private-field warnings.

Change-Id: I9eaea1b45bbe4fda4714831af1926c14b31cb9fe
Reviewed-by: hjk <hjk121@nokiamail.com>