Revert "Merge pull request #281 from tuncer/rebar-h-internal"

This reverts commit 07e2232847baa634b7d09bdb87dafda6c6bcc4a4, reversing
changes made to 37cf470ae9a07cdd2e0769f3af9a8b89fcde8db0.
Bump to 2.5.0