This allows to support QNX.
* Enable compilation of examples for unsupported. * Fix use of std::vector in BVH example. * Add an example for the matrix exponential. * Bug fixes in unsupported/doc/{examples,snippets}/CMakeLists.txt .
* tests now honor EIGEN_REPEAT and EIGEN_SEED if no arguments were passed
(I thought I committed it a week ago but it seems the command failed)