CI: Use JRuby 9.2.7.0, drop unused sudo: false
CI: Use JRuby 9.2.7.0, drop unused sudo: false

    - The Travis setting sudo: false has been removed - See https://blog.travis-ci.com/2018-11-19-required-linux-infrastructure-migration
Casecommons/pg_search,Casecommons/pg_search