Keep normal output quiet, but make failures more verbose to aid debugging.
Codify some assumptions on external environment variables.
Merge pull request #43 from msolo/fix-build-env

Keep normal output quiet, but make failures more verbose to aid debuggin...
Fix CNAME test case.
Fix typos.
Merge pull request #44 from msolo/fix-pdns-cname-test

Fix pdns cname test
Merge branch 'master' of github.com:youtube/vitess