NPC-355 - Make sure there is a print statement that the build failed.  Ideally we will have the pip failure print to stderr but this is an intermediate step that at least makes the issue obvious.
Merge pull request #226 from scottpurdy/pip-fail

NPC-355 - Make sure there is a print statement that the build failed.  I...
Merge branch 'master' into fix-NPC345-_PY27-not-exported