CVS commit by zrusin: 

Committing the folder rework. I wanted to wait a little bit, but it fixes
for me the "crash on reply" and "forward message crash" bugs and people
on IRC have been insisting on committing it. So yeah, asynchronous message
handling in KMail is in!!! May the God of Coding have mercy on us...


  M +3 -1      Makefile.am   1.178
  M +8 -5      kmaccount.cpp   1.83
  M +5 -4      kmaccount.h   1.52
  M +3 -2      kmacctcachedimap.cpp   1.4
  M +9 -4      kmacctcachedimap.h   1.4
  M +8 -9      kmacctimap.cpp   1.116
  M +5 -3      kmacctimap.h   1.54
  M +13 -11    kmcommands.cpp   1.19
  M +67 -96    kmfolder.cpp   1.238
  M +38 -36    kmfolder.h   1.100
  M +54 -558   kmfoldercachedimap.cpp   1.4
  M +12 -72    kmfoldercachedimap.h   1.3
  M +1 -1      kmfolderdir.cpp   1.38
  M +43 -376   kmfolderimap.cpp   1.79
  M +18 -45    kmfolderimap.h   1.34
  M +24 -2     kmfoldermaildir.cpp   1.42
  M +13 -3     kmfoldermaildir.h   1.12
  M +23 -5     kmfoldermbox.cpp   1.46
  M +9 -3      kmfoldermbox.h   1.10
  M +4 -4      kmfoldersearch.cpp   1.3
  M +6 -8      kmfoldersearch.h   1.3
  M +11 -8     kmheaders.cpp   1.471
  M +4 -2      kmmainwidget.cpp   1.3
  M +8 -5      kmmainwin.cpp   1.551
  M +3 -5      kmsender.cpp   1.167
  M +1 -1      maildirjob.cpp   1.3
  M +1 -1      maildirjob.h   1.3
  M +1 -1      mboxjob.cpp   1.3
  M +1 -1      mboxjob.h   1.3