.travis.yml in periodical-0.2.0 vs .travis.yml in periodical-1.0.0

- old
+ new

@@ -1,7 +1,12 @@
 language: ruby
+sudo: false
 rvm:
-  - "2.0"
-  - "2.1"
+  - 2.1.8
+  - 2.2.4
+  - 2.3.0
+  - ruby-head
+  - rbx-2
+env: COVERAGE=true
 matrix:
   allow_failures:
-    - rvm: "1.9"
+    - rvm: "rbx-2"
\ No newline at end of file