Fix serious bug where starting Konsole with arguments such as -e,--workdir or -p made changes to the default profile which applied to other Konsole windows and were saved on exit.  Problem fixed by creating a new hidden profile which inherits from the window's default profile and applying the property changes to that.  Modify SessionManager so that hidden profiles are not saved to disk.

svn path=/trunk/KDE/kdebase/apps/konsole/; revision=753735