Fix qmltest library.
Fix qmltest library.

- Avoid hangs (waiting for frameSwapped) and crashes
  in window managers for empty windows by giving windows
  a minimum size if they have 0x0 (observed on Mac, Windows).
- Polishing, set proper window flags, title, object name, output.

Change-Id: Iad5d66c3adbbfe085390132987e95f4c69272831
Reviewed-by: Christiaan Janssen <293f7292b4e4c70c138c7f8cfde88e640fae39b8@digia.com>

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