
- Fix bug reported by jmho which makes Marble crash if the user sets
  the physical cache to zero size.


svn path=/trunk/KDE/kdeedu/marble/; revision=930167

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