Update travis config. Try bionic build.

travis_script.sh

@@ -1,34 +0,0 @@
-#!/bin/bash
-# This script runs the test suites for the CI build
-
-# Be verbose and fail script on the first error
-set -xe
-
-# By default: all test runs
-if [ -z $1 ]; then
-  TEST_SUITE="all"
-else
-  TEST_SUITE="$1"
-fi
-
-case $TEST_SUITE in
-  linters)
-    bundle exec rubocop -Dc .rubocop.yml
-    bundle exec haml-lint app/views
-    ;;
-  models)
-    bundle exec rspec --format documentation spec/models
-    ;;
-  features)
-    bundle exec rspec --format documentation spec/features
-    ;;
-  controllers)
-    bundle exec rspec --format documentation spec/controllers
-    ;;
-  ability)
-    bundle exec rspec --format documentation spec/ability
-    ;;
-  rest)
-    bundle exec rspec --format documentation --exclude-pattern "spec/{models,features,controllers,ability}/**/*_spec.rb"
-    ;;
-esac