Preparing for Melodic sync 2018-09-21

Melodic Maintainers,
Currently Melodic has no regressions and 114 packages ready to sync. I plan to hold new releases for Melodic starting tomorrow, Sept 20, with a sync on Friday, September 21. Please reply here if there are any outstanding issues I should know about before performing the sync.

Your Friendly Melodic maintainer

The sync is out: New packages for Melodic 2018-09-21