message: slightly more robust test
diff: #define BOOST_TEST_DYN_LINK
  #include <boost/test/unit_test.hpp>
  #include <boost/test/floating_point_comparison.hpp>
  +#include "caffe/util/rng.hpp"
  extern parsed_args p_args;
  @@ -49,7 +50,7 @@ void test_set_atom_gradients() {
  center /= mol_atoms.size();
  transform.center = center;
  transform.Q = quaternion(1,0,0,0);
  -
  + transform.set_random_quaternion(caffe::caffe_rng());
  //initialize gmaker
  GridMaker gmaker;
  bool spherize = false;
  