1) The sensor code was a mess
2) The code formatting was all  argSensor  etc, spelling mistakes (therothetical).
3) It meant that the SignalPlotter could no longer be used by other people
4) Aggregated Sensor class assumed that the numbers would come in in the correct order.  Not true if they come from different machines.
5) This removed the sliding-window system that was used before.  Profilling showed the new way to be 10 times slower, although this was still a trivial amount of time.
6) GUI became more complex (a combo box requiring the user to know what ksysguardd is, just to change the range)
7) Introduced bugs like resetting the graph on a resize or scale change

svn path=/trunk/KDE/kdebase/workspace/; revision=1015575