.travis.yml in sequel-string_nilifier-1.2.0 vs .travis.yml in sequel-string_nilifier-1.3.0

- old
+ new

@@ -1,5 +1,13 @@
+language: ruby
+cache:
+  bundler: true
+sudo: false
 rvm:
-  - 1.9.3
-  - 2.0.0
-  - 2.1.0
-  - jruby-19mode
+  - 2.3.8
+  - 2.4.5
+  - 2.5.3
+env:
+  - SEQUEL='~> 4.0'
+  - SEQUEL='~> 5.0'
+gemfile:
+  - ci/sequel.gemfile