Serve https://api.nasqueron.org/servers-log microservice in nginx

Summary:
This microservice runs with php-fpm, with a dedicated pool
configured in c15f3c637094.

Test Plan:

1. Browse https://api.nasqueron.org/servers-log/status

2. Fire a PUT request to https://api.nasqueron.org/servers-log

3. Check a log enty appears at https://api.nasqueron.org/servers-log/all.json

Reviewers: dereckson

Reviewed By: dereckson

Differential Revision: https://devcentral.nasqueron.org/D1314