Support the last 3 versions of golang.

Author: iphydf

.travis.yml

@@ -1,6 +1,7 @@
 ---
 language: go
-sudo: required
+dist: xenial
+os: linux
 
 addons:
   apt:
@@ -12,13 +13,13 @@ addons:
       - libsodium-dev
       - libvpx-dev
 
-matrix:
+jobs:
   include:
-    - go: 1.7.x
+    - go: 1.12.x
       if: type IN (push, api, cron)
-    - go: 1.8.x
+    - go: 1.13.x
       if: type IN (push, api, cron)
-    - go: 1.9.x
+    - go: 1.14.x
       if: type IN (push, api, cron)
     - go: master