Released 2018-12-26

Announcements:
 * Support Node.js 10
 * Add package-lock.json
 * Configure Travis CI to run docker tests against Node.js 6 & 10 versions
 * Update cartodb-psql to 0.13.1 (type cache depends now on db host)

Bug fixes:
 * Do not use `assert` to throw erros as in Node.js > 6 wraps the original error, the keyword 'throw' does the trick and it's backwards compatible
 * Make all modules to use strict mode semantics.
 * Avoid too long messages in `X-SQLAPI-Errors` header #543