generate TER cards on output

justify atom names correctly (we have the technology (atomic symbol))

handle atoms with alternate location codes when building connectivity

automatically generate the MASTER record at the end of the output

get templates for other PDB "standard" residues, ATP, Coenzyme A,
Flavin mononucleotide (FMN), Heme (HEM), Methotrexate, NAD ???

need an algorithm (a program) that assigns atom types -- check out
	Elaine Meng's paper

move atom type information out of templates?  E.g. use amber's as the default
and provide charm and amber mappings?

pdb file writing (multiple coordinate sets, etc.)
