Remove obsolete class pqActiveServer.

Change-Id: Ieb9aa30108fa379658c23623beb1c07ca07d8a5f
BUG #15224: Fix documentation for settings (LODResolution).

Change-Id: I19c4feb0dbc1f23ee373905c3bb354769f88a4c3
Fix documentation.

Minor cleanups to header documentation.

Change-Id: I0547799f5526a0109ba53be73380985f4977f4be
Merge topic 'cleanups' into next

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