- increase both the width & decimals when formatting the bin centres
- this fixes a "rounding" bug in the formatting of bin centres when small depth increments (e.g., <= 1 angstrom) were used.
- this mitigates the liklihood of truncated output when the "bin"
size is small (e.g., < 1 nm).
- an additional compiler flag is needed for this (-mcmodel=medium),
which relaxes some of the assumptions about addresses and sizes
of sections in the generated code. See:
https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html
- improve the Makefile during the update, too.