2)  Fix the bug to assign the entrance fringe field of the sextupole (FF1 --> FF2)

2) Add feature to call COD correction.
3)  Add fmap_p( ), fmapdp_p( ), momacceptance_p( ), to do parallel
     computation of fmap, fmapdp, momacceptance.
4) Add feature to select parallel or non-parallel computation depending
   on the values of MPI_EXEC.

2) Add feature to call COD correction.
3)  Add fmap_p( ), fmapdp_p( ), momacceptance_p( ), to do parallel
     computation of fmap, fmapdp, momacceptance.

2) Add feature to turn off quadrupole fringe field.
3) Separate misalignment errors and COD correction.

Add scaling factors of beta beat dbeta_x, dbeta_y  and dnu_x, dnu_y, nu_x, nu_y, for ID compensation using quadrupoles.