fixed bug in .gro reader - correctly reads full precision; GtoG for system2_GMX shows perfect conversion
fixed bug in .gro reader - correctly reads full precision; GtoG for system2_GMX shows perfect conversion

ctk3b/InterMol,ctk3b/InterMol,mrshirts/InterMol,shirtsgroup/InterMol,shirtsgroup/InterMol,mrshirts/InterMol