This lets you write code like format.version() >= qMakePair(3, 2), and
format.setVersion(4, 2) instead of format.setMajorVersion(4);
format.setMinorVersion(2);
Change-Id: Ib052091cc12865ea0d5db52e468ed6cd28f14840
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>