CVS commit by mteijeiro: 

* Permit collapse/expand quoted mail (default disabled).
* Automatic collapse level of quoted mail with default to 3.

GUI:


  A            pics/quotecollapse.png   1.1
  A            pics/quoteexpand.png   1.1
  M +36 -2     configuredialog.cpp   1.530
  M +2 -0      configuredialog_p.h   1.116
  M +5 -0      csshelper.cpp   1.20
  M +13 -0     kmail.kcfg   1.41
  M +17 -0     kmreaderwin.cpp   1.805
  M +3 -0      kmreaderwin.h   1.207
  M +81 -13    objecttreeparser.cpp   1.131
  M +3 -0      objecttreeparser.h   1.45
  M +28 -4     urlhandlermanager.cpp   1.20
  M +2 -1      pics/Makefile.am   1.41