Don't fail for minor errors

The deploy doesn't need to fail whenever minor errors are reported to STDERROR.

https://www.jfrog.com/jira/browse/BAP-195
Merge pull request #4 from JDiPierro/dont_fail_for_minor_

BAP-195 - Build fails to deploy to Artifactory based purely on STDERR file descriptor activity
Pull request submitted by JDiPierro.