Bug 446931 - Systematic "ambiguous mapping" message with fragmented models

Change-Id: I11288168e7838a2d942b29968f838c47915528b6
Signed-off-by: Olivier Constant <olivier.constant@thalesgroup.com>
Bug 444752 - HeaderViewer label improvement

Change-Id: Ia1c1e32a36baa63597b95158b9f1d1062c4f6baa
Signed-off-by: Olivier Constant <olivier.constant@thalesgroup.com>