Updated submodules.

This commit is equivalent to one of the normal automated updates except
qtjsondb was deliberately held back a few commits, as it has some
source-incompatible changes which require updates in most modules.

Change-Id: I339ae36d10a747d0aa705d8839f68e4ca6758c5b
Reviewed-by: Toby Tomkins <toby.tomkins@nokia.com>