Write CONECT records to PDB files
Merge pull request #170 from peastman/master

Prevent segfaults when a simulation blows up
Take the 1-4 non-bonded scaling parameters from the Amber topology files if
present, defaulting to 1.2 (SCEE) and 2.0 (SCNB) if they're not present. If
values for scee and scnb are provided to readAmberSystem they will override any
values in the topology file, but a warning will be printed (since ignoring the
scaling parameters in the topology file really changes the force field).
Merge pull request #169 from peastman/connect

Write CONECT records to PDB files
Merge pull request #171 from swails/master

Take 1-4 nonbonded scaling parameters from the amber topology file
Merge pull request #173 from peastman/master

Performance improvements to CPU implementation of custom forces
Merge pull request #174 from peastman/master

Updated documentation for Lepton
Merge branch 'master' of https://github.com/SimTk/openmm