Update Travis versions

Author: picandocodigo

travis_before_script.sh renamed to .ci/travis_before_script.sh

@@ -15,25 +15,47 @@ branches:
   only:
     - master
     - 6.x
+    - 7.x
 
 matrix:
   include:
-    - rvm: 2.2
+    - rvm: 2.2.10
       jdk: oraclejdk8
-      env: RAILS_VERSIONS=3.0
+      env: RAILS_VERSIONS=5.0
 
     - rvm: 2.3.8
       jdk: oraclejdk8
       env: RAILS_VERSIONS=5.0
 
-    - rvm: 2.6.2
+    - rvm: 2.4.9
+      jdk: oraclejdk8
+      env: RAILS_VERSIONS=5.0
+
+    - rvm: 2.5.7
+      jdk: oraclejdk8
+      env: RAILS_VERSIONS=5.0,6.0
+
+    - rvm: 2.6.5
       jdk: oraclejdk8
       env: RAILS_VERSIONS=4.0,5.0,6.0
 
-    - rvm: jruby-9.2.7.0
+    - rvm: 2.7.0
+      jdk: oraclejdk8
+      env: RAILS_VERSIONS=5.0,6.0
+
+    - rvm: ruby-head
+      jdk: oraclejdk8
+      env: RAILS_VERSIONS=5.0,6.0
+
+    - rvm: jruby-9.2.9.0
       jdk: oraclejdk8
       env: RAILS_VERSIONS=5.0
 
+  allow_failures:
+    - rvm: ruby-head
+      jdk: oraclejdk8
+      env: RAILS_VERSIONS=5.0,6.0
+
 env:
   global:
     - ELASTICSEARCH_VERSION=7.2.0
@@ -42,8 +64,10 @@ env:
     - QUIET=true
 
 before_install:
-  - source ./travis_before_script.sh
-  - gem update --system
+  - source ./.ci/travis_before_script.sh
+  - if [ $TRAVIS_RUBY_VERSION != "2.2.10" ]; then
+      gem update --system;
+    fi
   - gem update bundler
   - gem --version
   - bundle version