GitLab

Added checks for nonbonded methods
Removed unused functionality from GK force
Moved non-accessor methods from Force classes to ForceImpl classes

An exception is now thrown if the multipole axis type is not Bisector or Z-then-X
Redid velocity initialization in test code

Test use env variable OPENMM_PLUGIN_DIR to find plugin

Removed cubic/quartic per-atom parameters from AmoebaHarmonicBondForce

Modified out-of-plane bend force to improve stability
Redid arguments to kCalculateAmoebaCudaKirkwood to reduce lmem