another explicit constructor
another explicit constructor

svn path=/trunk/KDE/kdeedu/marble/; revision=1082474

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