v0.6.0

• Allow named pipes as files in -f flag (example: ytt template -f <(echo "---")) (fixes #12)

5bb61ca3ffdaa37cb9aa3f655fe3ec7df5b5b64119d7cc9571a775852b78ba91  ./ytt-darwin-amd64
975b811dcb591b2bc6446cdeaab4b934545dea340eb7f8222a83efe34e99deda  ./ytt-linux-amd64
f99cfab70a53d18b7258cbcc773e1abc3b0f1153416ab6e37a929570ff98b6ad  ./ytt-windows-amd64.exe