Modifications used for addendum to Dimuon TDR (JP Cussonneau):

Modifications used for addendum to Dimuon TDR (JP Cussonneau):
*. MaxBendingMomentum to make both a segment and a track (default 500)
*. MaxChi2 per degree of freedom to make a track (default 100)
*. MinBendingMomentum used also to make a track
   and not only a segment (default 3)
*. wider roads for track search in stations 1 to 3
*. extrapolation to actual Z instead of Z(chamber) in FollowTracks
*. in track fit:
   - limits on parameters X and Y (+/-500)
   - covariance matrices in double precision
   - normalization of covariance matrices before inversion
   - suppression of Minuit printouts
*. correction against memory leak (delete extrapHit) in FollowTracks
*. RMax to 10 degrees with Z(chamber) instead of fixed values;
   RMin and Rmax cuts suppressed in NewHitForRecFromGEANT,
   because useless with realistic geometry