[build] Run CI for Go 1.7.x - 1.10.x (#84)

Author: elithrar

.travis.yml

@@ -3,10 +3,16 @@ sudo: false
 
 matrix:
   include:
-    - go: 1.3
-    - go: 1.4
-    - go: 1.5
-    - go: 1.6
+    - go: "1.x"
+      env: "LATEST=true"
+    - go: "1.3.x"
+    - go: "1.4.x"
+    - go: "1.5.x"
+    - go: "1.6.x"
+    - go: "1.7.x"
+    - go: "1.8.x"
+    - go: "1.9.x"
+    - go: "1.10.x"
     - go: tip
   allow_failures:
     - go: tip
@@ -17,5 +23,6 @@ install:
 script:
   - go get -t -v ./...
   - diff -u <(echo -n) <(gofmt -d .)
-  - go vet $(go list ./... | grep -v /vendor/)
+  - if [ "${LATEST}" = "true" ]; then go vet ./...; fi
   - go test -v -race ./...
+