message: adjust path
diff: Example usage in the test mode:
  .x ~/rootlogon.C
  - .L $ALICE_ROOT/../src/TPC/fastSimul/AliTPCclusterFast.cxx+
  + .L $AliRoot_SRC/TPC/fastSimul/AliTPCclusterFast.cxx+
  AliTPCclusterFast::InitFormulas();
  AliTPCclusterFast::fPRF = new TF1("fprf","gausn",-5,5); //MWPC
  AliTPCclusterFast::fPRF->SetParameters(1,0,0.5);
  @@ -1129,7 +1129,6 @@ Float_t AliTPCclusterFast::UnfoldCluster(Float_t & meani, Float_t & meanj, Flo
  overlap=0;
  //
  //
  - //
  MakeDigitization(addOverlap, gain, thr, noise,rounding, addPedestal, skipSample);
  