CVS commit by mlaurent: 

Add some const


  M +8 -8      knaccountmanager.h   1.17
  M +13 -13    knarticle.h   1.12
  M +13 -13    knarticlefilter.h   1.12
  M +1 -1      knarticlewindow.h   1.27
  M +4 -4      kncollection.h   1.9
  M +1 -1      kncomposer.h   1.45
  M +67 -67    knconfig.h   1.64
  M +1 -1      knconvert.h   1.7
  M +6 -6      knfolder.h   1.20
  M +4 -4      knfoldermanager.h   1.18
  M +1 -1      kngroupbrowser.h   1.13
  M +5 -5      kngrouppropdlg.h   1.14
  M +4 -4      knlistview.h   1.29
  M +10 -10    knserverinfo.h   1.10
  M +2 -2      utilities.h   1.22