newer railties version requires ruby >= 2.2.2 to work

Borzik · Borzik · commit 8cb2e6ecacc4 · 2016-09-26T00:06:07.000+03:00
Actually it depends on actionpack 5.0, which is dependent on Rack 2.0, which is not compatible with ruby 1.9.3, and it causes all recent builds to fail
diff --git a/.travis.yml b/.travis.yml
@@ -1,2 +1,2 @@
 rvm:
-  - 1.9.3
+  - 2.2.2
