Merge topic 'cleanups'

f651a69d Fix documentation.
16c80863 BUG #15224: Fix documentation for settings (LODResolution).
069e98f4 Remove obsolete class pqActiveServer.
Merge master into next

* commit 'aa525d5d662ea6c7036e47a07e4c8a146a773e5f':

Change-Id: I083ebdf153a9fede826ab290d95f92d005996ec1