fixed a varity of unsigned int bugs. Furthermore fixed the swap msr<->mlog bug

src/include/PFitter.h

@@ -67,10 +67,12 @@ class PFitter
     virtual ~PFitter();
 
     bool IsValid() { return fIsValid; }
+    bool HasConverged() { return fConverged; }
     bool DoFit();
 
   private:
     bool fIsValid;
+    bool fConverged;
     bool fChisqOnly;
     bool fUseChi2;
 

src/include/PMsrHandler.h

@@ -75,6 +75,7 @@ class PMsrHandler
     virtual void SetMsrDataRangeEntry(unsigned int runNo, unsigned int idx, int bin);
     virtual void SetMsrBkgRangeEntry(unsigned int runNo, unsigned int idx, int bin);
 
+    virtual void SetMsrStatisticConverged(bool converged) { fStatistic.fValid = converged; }
     virtual void SetMsrStatisticMin(double min) { fStatistic.fMin = min; }
     virtual void SetMsrStatisticNdf(unsigned int ndf) { fStatistic.fNdf = ndf; }