Revert "Incrementing version to 0.9.23"

This reverts commit 914f096.

Update Makefile

Incrementing version

Incrementing version

Prepare for 0.9.19 release

Merge branch 'next'

Note 0.9.17 release date

Note 0.9.16 release date

Fix setuid bit on /usr/bin/sudo, bump version to 0.9.15.

Closes phusionGH-148.

Bump version to 0.9.14

Note 0.9.13 release date