ostent 0.1.9

Groundwork: code, assets, building redone/optimized.
Javascript assets are concatenated, thus it takes one request to receive them all.
No other substantial user visible changes.

If you had an installment since this repo was known as rzab/ostent, ostent should self-upgrade properly. Otherwise please remove the binary and re-install with curl -sSL https://github.com/ostrost/ostent/raw/master/ostent.sh | sh