Added System::getNumDegreesOfFreedom()
Revert "Added System::getNumDegreesOfFreedom()"

This reverts commit 542ee547480fa81901af22bdee7ad1f10a0ccbc3.
Fixed incorrectly formatted comments that caused problems in the API docs
Merge pull request #356 from peastman/master

Fixed incorrectly formatted comments that caused problems in the API docs
Removed unnecessary synchronization that hurt performance on Nvidia
Merge pull request #357 from peastman/master

Removed unnecessary synchronization that hurt performance on Nvidia
Fixed some overly stringent tests
Merge pull request #359 from peastman/master

Fixed some overly stringent tests