GitLab

Incorporate Normal Mode Langevin openmm code from Chris Sweet as a plugin.  (compiles on windows, but no actual testing done)

Added a version of Platform::getPlatform() that looks up platforms by name.  Added a Context constructor that allows platform-specific properties to be specified.

Set NVCC_FLAGS to particular value in new cmake_modules/FindCUDA.cmake

removed some cruft

Turn on free energy plugin by default.
Better rule for when to default build OpenMM wrappers.
Several tweaks to advanced vs. non-advanced cmake variables.

So nightly builds can build CUDA and API wrappers when prerequisites are present.
While still being gentle on third party cmake builders.
New cmake_modules directory contains FindCUDA.cmake from cmake 2.8.0, and
Find OpenCL.cmake from platforms/OpenCL directory.

Fixed bug: was calling kReduceObcGbsaSoftcoreBornForces instead of kReduceGBVISoftcoreBornForces in GB/VI force calculation

Mods to get Free energy plugin libs to compile on Windows; still problem w/ kCalculateLocalSoftcoreForces.cu
and hence OpenMMFreeEnergyCuda lib