[Kst] kdeextragear-2/kst

[George Staikos]

CVS commit by staikos: 

implement the dirty flag, mark some items that I'm working on


  M +2 -4      devel-docs/RELEASE_PLAN-0.98   1.5
  M +39 -36    kst/kst2dplot.cpp   1.123
  M +2 -3      kst/kst2dplot.h   1.51