Instantiate QApplication before KCrash/KCatalog
Summary: There are some warnings at runtime because KCrash and KCatalog (through i18n calls) are instantiated before the QApp itself is.
Reviewers: Baloo, bruns, poboiko, mlaurent
Reviewed By: mlaurent
Subscribers: kde-frameworks-devel, Baloo
Tags: Frameworks, Baloo
Differential Revision: https://phabricator.kde.org/D18424