[Kst] kdeextragear-2/kst/kst

[George Staikos]

CVS commit by staikos: 

activate the new equation parser and interpreter.  It's hooked in
inefficiently right now, and I have done very little regression testing, but
it seems to work well enough to start wide testing.  Timings indicate it is,
finally, requiring approximately 1/4 the amount of CPU time to evaluate the
same equation as the old one, on average.  Regression tests to follow.


  M +62 -14    enodes.cpp   1.4
  M +13 -1     enodes.h   1.4
  M +37 -413   kstequationcurve.cpp   1.44
  M +1 -13     kstequationcurve.h   1.23
  R            genterStacks.cpp   1.2
  R            genterStacks.h   1.3