help message was fixed
The sample sizes for soln and refs are adjustable to facilitate convergence check
Cumulative addition of self energy is fixed in double precision to reduce error for single-precision build.
Assertion in subroutine normalize_coordinate was removed.
organized
Fixed for cases where configuration file or parameter file is used
is now usable even if there is no log-file in the current directory.
Changed error messages to not include variables (for Fugaku, Fortran2003?)