Update Ruby versions in line with other repos

JonRowe · JonRowe · commit 272f70adbdd3 · 2017-11-20T20:20:45.000+11:00
diff --git a/.travis.yml b/.travis.yml
@@ -35,8 +35,8 @@ script: "script/run_build 2>&1"
 
 rvm:
   - 1.8.7
-  - 2.4.1
-  - 2.3.4
+  - 2.4.2
+  - 2.3.5
   - 2.2
   - 2.1
   - 2.0.0

-Original file line number
+Diff line change
 rvm:
   - 1.8.7
 -  - 2.4.1
 -  - 2.3.4
 +  - 2.4.2
 +  - 2.3.5
   - 2.2
   - 2.1
   - 2.0.0