Upgrade ruby versions to make travis work.

.travis.yml

@@ -4,30 +4,30 @@ rvm:
   - 2.3.1
   - 2.2.5
   - jruby-1.7.23
-  - jruby-9.0.0.0
+  - jruby-9.0.5.0
 env:
   - RSPEC_TAGS=~new_cypher_session NEO4J_VERSION=community-2.3.0
   - RSPEC_TAGS=~new_cypher_session NEO4J_VERSION=community-2.2.6
 sudo: false
 matrix:
   include:
     - script: "bundle exec rubocop"
-      rvm: 2.3.0
+      rvm: 2.3.1
       env: "RUBOCOP=true"
     # Pre-2.1.5 is special, metadata isn't sent back with HTTP REST endpoint
-    - rvm: 2.3.0
+    - rvm: 2.3.1
       env: RSPEC_TAGS=~new_cypher_session NEO4J_VERSION=community-2.1.8
 
     # Sanity check against Neo4j 2.3.x with MRI and JRuby
-    - rvm: 2.3.0
+    - rvm: 2.3.1
       env: RSPEC_TAGS=~new_cypher_session NEO4J_VERSION=community-2.3.0
-    - rvm: jruby-9.0.0.0
+    - rvm: jruby-9.0.4.0
       env: RSPEC_TAGS=~new_cypher_session NEO4J_VERSION=community-2.3.0
 
     # Testing new CypherSession
-    - rvm: 2.3.0
+    - rvm: 2.3.1
       env: RSPEC_TAGS=new_cypher_session NEO4J_VERSION=community-2.2.5
-    - rvm: 2.3.0
+    - rvm: 2.3.1
       env: RSPEC_TAGS=new_cypher_session NEO4J_VERSION=community-2.1.8
-    - rvm: jruby-9.0.0.0
+    - rvm: jruby-9.0.4.0
       env: RSPEC_TAGS=new_cypher_session NEO4J_VERSION=community-2.2.5