CVS commit by sanders: 

Commit the code that uses the MessageProperty class.

This should fix a bug with ad hoc filters crashing when they move a message
to a different folder.

And also fix the bug/limitation that the move to folder action has to
come last in the list of filter actions for a filter.

This commit doesn't really use the action scheduler, code to use the
action scheduler in kmheaders and kmcommands is commented out.

I've been testing this code for a few weeks now. The changes to the
assignment operators in the kmmessage and kmmsgbase classes are the
changes I'm most concerned about here.


  M +1 -0      Makefile.am   1.239
  M +1 -1      kmailIface.h   1.24
  M +44 -5     kmcommands.cpp   1.83
  M +2 -1      kmcommands.h   1.24
  M +11 -4     kmfilter.cpp   1.57
  M +5 -5      kmfilter.h   1.27
  M +137 -26   kmfilteraction.cpp   1.113 [POSSIBLY UNSAFE: popen]
  M +15 -4     kmfilteraction.h   1.43
  M +47 -62    kmfiltermgr.cpp   1.58
  M +8 -3      kmfiltermgr.h   1.27
  M +36 -2     kmheaders.cpp   1.583
  M +2 -0      kmheaders.h   1.140
  M +13 -1     kmkernel.cpp   1.219
  M +8 -1      kmkernel.h   1.84
  M +0 -2      kmmainwidget.h   1.33
  M +6 -38     kmmessage.cpp   1.442
  M +1 -20     kmmessage.h   1.155
  M +55 -17    kmmsgbase.cpp   1.168
  M +11 -0     kmmsgbase.h   1.63