Clean-up, resurrection MC-Checker, all configurables in

The branch is rebased and implement the MCChecking.

Pr/PrPixel/src/PrPixelTracking.cpp

@@ -399,12 +399,10 @@ void PrPixelTracking::doPairSearch( std::vector<PrPixelModuleHits>& modulehits,
           if( x1*( x0-x1)*invdz + y1*( y0-y1)*invdz <0. ) continue;
         }
         
-	if ( configuration == Conf::Backward){
+        if( configuration == Conf::Backward){
 	  // info()<<"Continuing backward -----"<<endmsg;
-	  if(x1*( x0-x1)*invdz + y1*( y0-y1)*invdz >0.) continue;
-	}
-      
-	//zCross Cut not applied
+          if(x1*( x0-x1)*invdz + y1*( y0-y1)*invdz >0.) continue;
+        }
 	// Make a seed track out of these two hits.
 	// Extend the seed track towards smaller Z.
 	hitbuffer[1] = sens0;
@@ -415,7 +413,6 @@ void PrPixelTracking::doPairSearch( std::vector<PrPixelModuleHits>& modulehits,
 	extendTrack<configuration>(modulehits, hitbuffer );
 	
 	if ( hitbuffer[0] < 6 ) continue;
-	
 	//if track has 3 hits && !m_hardFlagging
 	if ( hitbuffer[0] == 6 && !m_hardFlagging){
 	  ThreeHitVec.insert(ThreeHitVec.end(), hitbuffer.begin()+1, hitbuffer.begin() + 1 + hitbuffer[0]);
@@ -617,6 +614,7 @@ size_t PrPixelTracking::bestHit( std::vector<PrPixelModuleHits>& modulehits, con
   const float z1 = m1.getZ(hit1);
 
   //info() << "BestHit start: " << x0 << " " << m0.getY(hit0) << " " << z0 << " " << x1 << " " << m1.getY(hit1) << " " << z1 << endmsg;
+
   const float td = 1.0 / (z1 - z0);
   const float txn = (x1 - x0);
   const float tx = txn * td;
@@ -679,6 +677,7 @@ size_t PrPixelTracking::bestHit( std::vector<PrPixelModuleHits>& modulehits, con
     if (fabs(dy) > m_extraTol) continue;
     //info() <<  hit_x << endmsg;
     if(m_hardFlagging && m2.IsUsed(i)) continue;
+
     const float scatterDenom = 1.0 / (hit_z - z1);
     const float dx = xPred - hit_x;
     const float scatterNum = (dx * dx) + (dy * dy);