Changed QStringList from container to primitive type.
Changed QStringList from container to primitive type.

QStringList inherits from QList<QString>, and it isn't a reusable
container itself, such as QList.

Reviewed by Hugo Parente <hugo.lima@openbossa.org>
Reviewed by Luciano Wolf <luciano.wolf@openbossa.org>

M4rtinK/pyside-android,BadSingleton/pyside2,M4rtinK/pyside-bb10,pankajp/pyside,IronManMark20/pyside2,BadSingleton/pyside2,enthought/pyside,M4rtinK/pyside-android,M4rtinK/pyside-bb10,RobinD42/pyside,RobinD42/pyside,M4rtinK/pyside-android,enthought/pyside,M4rtinK/pyside-bb10,enthought/pyside,PySide/PySide,BadSingleton/pyside2,enthought/pyside,M4rtinK/pyside-android,M4rtinK/pyside-bb10,qtproject/pyside-pyside,pankajp/pyside,RobinD42/pyside,pankajp/pyside,RobinD42/pyside,PySide/PySide,gbaty/pyside2,gbaty/pyside2,BadSingleton/pyside2,RobinD42/pyside,RobinD42/pyside,pankajp/pyside,gbaty/pyside2,M4rtinK/pyside-bb10,gbaty/pyside2,IronManMark20/pyside2,M4rtinK/pyside-android,enthought/pyside,enthought/pyside,gbaty/pyside2,enthought/pyside,M4rtinK/pyside-android,IronManMark20/pyside2,pankajp/pyside,PySide/PySide,IronManMark20/pyside2,qtproject/pyside-pyside,PySide/PySide,IronManMark20/pyside2,M4rtinK/pyside-bb10,qtproject/pyside-pyside,BadSingleton/pyside2,RobinD42/pyside,PySide/PySide,qtproject/pyside-pyside,qtproject/pyside-pyside