Include QDataStream.
Include QDataStream.

Don't rely on it being pulled in by other includes.

Change-Id: Ifda86c1a5b3e76299594fafbbb6d2d94f24b0bb3
Reviewed-by: Alex Blasche <429ec4e831e8320529ddfedc4983cef56f3f7ae1@digia.com>

kobolabs/qtlocation,kobolabs/qtlocation,kobolabs/qtlocation