[pgjdbc/pgjdbc] e960f2: chore: install PostgreSQL 9.1 to Trusty builds via...

Branch: refs/heads/master
Home: https://github.com/pgjdbc/pgjdbc
Commit: e960f2373a8de8b1b58fa199ee85a8b73ae684d2
https://github.com/pgjdbc/pgjdbc/commit/e960f2373a8de8b1b58fa199ee85a8b73ae684d2
Author: Vladimir Sitnikov <sitnikov(dot)vladimir(at)gmail(dot)com>
Date: 2017-07-23 (Sun, 23 Jul 2017)

Changed paths:
M .travis.yml
M .travis/travis_install_postgres.sh

Log Message:
-----------
chore: install PostgreSQL 9.1 to Trusty builds via apt, and use Precise for Java 6

Travis deprecates Precise. See
https://blog.travis-ci.com/2017-07-11-trusty-as-default-linux-is-coming

sudo: required for dist: precise will still be supported for a while, however no updates to that image is planned

Java 6 is not included into Trusty image, and installers no longer work
(see http://www.webupd8.org/2017/06/why-oracle-java-7-and-6-installers-no.html) since
Oracle removed the installer files from public access.