qdoc3: qdoc now creates output subdirectories
qdoc3: qdoc now creates output subdirectories

Now most (if not all) of the cross-subdirectory
links are correct.

Task-number:  QTBUG-22244
Change-Id: I4bf3bd33f71862881c9f2c8e9c54948e4ab89332
Sanity-Review: Qt Sanity Bot <5581206bb7e0307f0d99eb71898ae6b694149ca5@ovi.com>
Reviewed-by: Casper van Donderen <808524cef5c654648bea2a2b954f3b3445ed083c@nokia.com>

kobolabs/qtdoc,kobolabs/qtdoc,kobolabs/qtdoc,kobolabs/qtdoc