* moved things to where they should be: class Task is now concerned with everything regarding a task
  * split DesktopTracker out of TaskView
  * each Task now has its own time instead of a cumulated one
* cleaned up headers/includes
* killed many bugs and introduced new interesting bugs
* comments to tasks can be logged (log: "nice chatting with customer")
* "Reset Session Times" is now "Start New Session" - thanks David Faure
* other things that I forgot

svn path=/trunk/kdepim/; revision=228686