Don't layout while applying model changes
Don't layout while applying model changes

Task-number: QTBUG-21742
Change-Id: I0e01b9ac9f033108410ccd431329dd7d50edb8f2
Reviewed-on: http://codereview.qt-project.org/5903
Reviewed-by: Qt Sanity Bot <5581206bb7e0307f0d99eb71898ae6b694149ca5@ovi.com>
Reviewed-by: Bea Lam <3b8b412f85e38e2fbf2a7d737c89d787c51aca40@nokia.com>

mgrunditz/qtdeclarative-2d,qmlc/qtdeclarative,qmlc/qtdeclarative,crobertd/qtdeclarative,crobertd/qtdeclarative,matthewvogt/qtdeclarative,corngood/qtdeclarative,qmlc/qtdeclarative,matthewvogt/qtdeclarative,mgrunditz/qtdeclarative-2d,corngood/qtdeclarative,jfaust/qtdeclarative,corngood/qtdeclarative,corngood/qtdeclarative,matthewvogt/qtdeclarative,crobertd/qtdeclarative,crobertd/qtdeclarative,corngood/qtdeclarative,corngood/qtdeclarative,crobertd/qtdeclarative,qmlc/qtdeclarative,qmlc/qtdeclarative,matthewvogt/qtdeclarative,jfaust/qtdeclarative,crobertd/qtdeclarative,qmlc/qtdeclarative,mgrunditz/qtdeclarative-2d,qmlc/qtdeclarative,mgrunditz/qtdeclarative-2d,matthewvogt/qtdeclarative,mgrunditz/qtdeclarative-2d,crobertd/qtdeclarative,jfaust/qtdeclarative,mgrunditz/qtdeclarative-2d,corngood/qtdeclarative,jfaust/qtdeclarative,matthewvogt/qtdeclarative,mgrunditz/qtdeclarative-2d,matthewvogt/qtdeclarative,qmlc/qtdeclarative,jfaust/qtdeclarative,matthewvogt/qtdeclarative,jfaust/qtdeclarative,jfaust/qtdeclarative