THcFormula::DefinedValue is removed as
     THaFormula::DefinedValue now handles the kCutScaler and kCutNCalled types

  Don't check if UInt_t's are >=0
  Remove unused/repeated variables
  Cast enums to Int_t in switch statements
  Initialize temp variables

  Modify THcFormula and THcParmList to match changes to THaFormula
     (needed for reports)
  Small changes in THcInterface and detector classes for compatibility
     with new OO decoder and podd 1.6

  Variable found in a report template is first tested to see if it is a
  Hall C style parameter (in gHcParms).  If not, then tested to see if it
  is a global variable (in gHaVars).

This is a temporary fix for problem that arise when compiling on the
ifarm machines. In the DefinedValue method when using
kCutScaler and kCutNCalled the switch statement goes to the default
case.

On ifarm gcc version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC)
There are compiler warnings
 src/THcFormula.cxx: In member function 'virtual Double_t THcFormula::DefinedValue(Int_t)':
src/THcFormula.cxx:131: warning: case label value exceeds maximum value for type
src/THcFormula.cxx:134: warning: case label value exceeds maximum value for type
One permenant fix would be to add kCutScaler and kCutNCalled to the
enum EVariableType in THaFormula.h.

Inspired by ENGINE/CTP report generator
  Reports generated by
    THcAnalyzer::PrintReport(templatefilename,outputfilename)
    template is copied to output, {stuff} is replaced by the
       value of stuff.  Value can be formated with c formater, eg.
           {stuff:%.2f}
  ThcFormula added to allow more flexibility of variables.
    Can get number of times cuts pass or are called with:
       cutname.npassed (or cutname.scaler) and cutname.ncalled