use codecov

Author: mattn

.travis.yml

@@ -1,12 +1,21 @@
 language: go
+sudo: false
+
 go:
+  - 1.8
+  - 1.9
+  - 1.10
   - tip
 
-install:
-  - go get -u golang.org/x/tools/cmd/goimports
-  - go get -u github.com/golang/lint/golint
+env:
+  global:
+    - secure: "qXGZbIMjPajPVfd/js8AeIIcCvglHAuxGC6rsf8+yQvHHNHwnoIBO5StLJqp9Wbx0HfZLb2PzZBE0jPItMA9pYZZv0jCRqb18veS6DEzeVRSZJscR7LB1W8lEW5HbOm2r3tjyJzPh9PsvzmYxSLlo8zN1k7LNIIDrZbjMst6O4Y="
+
+before_install:
+  - go get -t -v ./...
 
 script:
   - go test ./...
-  - diff <(goimports -d .) <(printf "")
-  - diff <(golint ./...) <(printf "")
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)