Centralized the forces, positions, and thread pool so they can be shared between kernels
Bug fixes
Created optimized CPU version of GBSAOBCForce
Minor optimizations to CPU version of GBSAOBCForce
Merge pull request #205 from peastman/gb

Created optimized CPU version of GBSAOBCForce
Moved benchmarking script into main repository
Bug fix to benchmarking script
Bug fix to benchmarking script
Merge branch 'master' of https://github.com/peastman/openmm
Merge pull request #206 from peastman/master

Moved benchmarking script into main repository
Optimizations to CPU version of GBSA
Merge pull request #207 from peastman/master

Optimizations to CPU version of GBSA
Improved the geometry of hydroxyls when adding hydrogens
Merge pull request #208 from peastman/master

Improved the geometry of hydroxyls when adding hydrogens