switching from 'prove' to 'perl' to run the test scripts when we're preparing
them to be submitted to smolder. Prove adds an additional summary at the end
of the test run which confuses the TAP parser in smolder. It thinks that an
additional test has been run, and it fails it.
Then, I added a '-' before the command in the Makefile. THat's so that even
if 'perl' returns a failing code (because some tess failed), the rest of the
rules are run and a report gets submitted. Othewise, only passing reports
get sent.