This is necessary for initializing things in a library, which require
a QCoreApplication instance (unlike Q_CONSTRUCTOR_FUNCTION, which runs
before that). Example use cases: KCrash (segv handler), and KCheckAccelerators
(debugging tool triggered by magic key combination).
Change-Id: I5f4c4699dd4d21aea72b007989ba57467e86ed10
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>