Errors/messages from the score function FUN are suppressed during optimization

[cmicek1]

The function I'm trying to optimize has some nested parallelization, and occasionally prints some debug output. It seems that bayesOpt is suppressing this output somehow, but it would be extremely useful to pass on if something goes wrong! There are several times I've received an "Errors encountered in initialization are listed above." message with no errors listed, when evaluating the score function by itself produces error output.