Do not ignore errors in cydpm.pred_prob
Merge pull request #1 from pi/safer-dpm

Do not ignore errors in cydpm.pred_prob
add option to build without cython modules
do not assume cython modules are available
skip tests where comp model is not available
update readme
fix import error in test_xrp
Merge pull request #3 from pi/optional-cython

Optional cython