Overrun prevention, and new traceroute schema handling.

This release:

1. Adds paris traceroute instance.
2. Adds overrun prevention, so we don't get multiple tasks trying to manage same date.

Merged #168 update traceroute dedup sql 4 days ago
Merged #166 fix behavior of nosuchentity 6 days ago
Merged #162 Sandbox avoid overrun 7 days ago
Merged #165 bring pt back (from clean master) 8 days ago
Merged #163 Sandbox ptback 8 days ago

There are no major changes, but advancing to v1.0.0, as it should have been long ago.