same default values in c'tor as in setSettings()
same default values in c'tor as in setSettings()

* fixes RenderPluginTest::restoreDefaultSettings()

quannt24/marble,tucnak/marble,tzapzoor/marble,quannt24/marble,utkuaydin/marble,probonopd/marble,quannt24/marble,AndreiDuma/marble,oberluz/marble,adraghici/marble,adraghici/marble,rku/marble,probonopd/marble,quannt24/marble,AndreiDuma/marble,tucnak/marble,tzapzoor/marble,quannt24/marble,tucnak/marble,oberluz/marble,tzapzoor/marble,David-Gil/marble-dev,David-Gil/marble-dev,tzapzoor/marble,David-Gil/marble-dev,utkuaydin/marble,tucnak/marble,utkuaydin/marble,quannt24/marble,tzapzoor/marble,AndreiDuma/marble,Earthwings/marble,tucnak/marble,probonopd/marble,David-Gil/marble-dev,David-Gil/marble-dev,AndreiDuma/marble,oberluz/marble,rku/marble,Earthwings/marble,rku/marble,adraghici/marble,utkuaydin/marble,Earthwings/marble,David-Gil/marble-dev,tzapzoor/marble,tucnak/marble,adraghici/marble,Earthwings/marble,quannt24/marble,Earthwings/marble,utkuaydin/marble,oberluz/marble,adraghici/marble,oberluz/marble,AndreiDuma/marble,utkuaydin/marble,probonopd/marble,probonopd/marble,probonopd/marble,Earthwings/marble,tzapzoor/marble,tucnak/marble,adraghici/marble,tzapzoor/marble,probonopd/marble,oberluz/marble,rku/marble,rku/marble,rku/marble,AndreiDuma/marble