Make sure travis tests on latest go version.

cpuguy83 · cpuguy83 · commit 7f1a8b2a1274 · 2018-05-16T11:27:15.000-04:00
Signed-off-by: Brian Goff &lt;cpuguy83@gmail.com&gt;
diff --git a/.travis.yml b/.travis.yml
@@ -4,6 +4,8 @@ sudo: required
 go:
   - 1.8.x
   - 1.9.x
+  - 1.10.x
+  - 1.x
   - tip
 
 go_import_path: github.com/containerd/continuity

-Original file line number
+Diff line change
 go:
   - 1.8.x
   - 1.9.x
 +  - 1.10.x
 +  - 1.x
   - tip
 go_import_path: github.com/containerd/continuity