Updated dlist.c to recognize more atom names.

Previously, g_chi basically only worked correctly for OPLS-AA and
Gromos96 force fields, based on C-terminal atom names.  This commit
adds atom names for AMBER and CHARMM force fields so that g_chi
calculates dihedral properties for all residues.

Change-Id: I48517fb55bd46e7d49941f7902f4f6531e443e62