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

Now the file qt.pageindex is updated to use
relative paths. This file might be no longer
used by anything.

Task-number:  QTBUG-22244
Change-Id: I9a9d4f0bad3ed566c176a7b15cd98f37c8d7c05f
Sanity-Review: Qt Sanity Bot <5581206bb7e0307f0d99eb71898ae6b694149ca5@ovi.com>
Reviewed-by: Martin Smith <a8cc6484db2755056ccf1c457da8ca771f895dea@nokia.com>
Reviewed-by: Casper van Donderen <808524cef5c654648bea2a2b954f3b3445ed083c@nokia.com>

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