.travis.yml in adminpanel-3.4.7 vs .travis.yml in adminpanel-3.5.0

@@ -1,15 +1,18 @@
 language: ruby
 
 rvm:
-  - 2.2.3
-  - 2.3.0
+  - 2.2
+  - 2.3
+  - 2.4
+  - 2.5
 
 sudo: false
 
 dist: trusty
 
 cache: bundler
 
 env:
-  - RAILS=5.0.0.1
-  - RAILS=5.1.0
+  - RAILS=5.0
+  - RAILS=5.1
+  - RAILS=5.2