Sizable improvement in multigrid for unsquared.

6000 matmuls CG unprec
2000 matmuls CG prec (4000 eo muls)
1050 matmuls PGCR on 16^3 x 32 x 8 m=.01

Substantial effort on timing and logging infrastructure

lib/algorithms/approx/Chebyshev.h

@@ -120,7 +120,7 @@ namespace Grid {
       Field *Tn  = &T1;
       Field *Tnp = &T2;
 
-      std::cout << "Chebyshev ["<<lo<<","<<hi<<"]"<< " order "<<order <<std::endl;
+      std::cout<<GridLogMessage << "Chebyshev ["<<lo<<","<<hi<<"]"<< " order "<<order <<std::endl;
       // Tn=T1 = (xscale M + mscale)in
       double xscale = 2.0/(hi-lo);
       double mscale = -(hi+lo)/(hi-lo);

lib/algorithms/approx/Remez.cc

@@ -757,3 +757,4 @@ void AlgRemez::csv(std::ostream & os)
   }
   return;
 }
+

lib/algorithms/approx/Remez.h

@@ -28,6 +28,7 @@
   remez.getIPFE(res,pole,&norm);
   remez.csv(ostream &os);
  */
+
 class AlgRemez
 {
  private: