Shows stdout when invoking HERest
Shows stdout when invoking HERest

HERest invocation currently eats stdout, and HERest prints some errors
to stdout. Thus in issue #50, HERest fails with return code -11 but the
error message (that you have an empty label file somewhere) is not
shown. This fixes this by not eating stdout.

Closes #50.

prosodylab/Prosodylab-Aligner,prosodylab/Prosodylab-Aligner