Update dependencies

vendor/github.com/gin-gonic/gin/.travis.yml

@@ -1,6 +1,27 @@
 language: go
 sudo: false
 go:
-  - 1.3
-  - 1.4
+  - 1.6.4
+  - 1.7.4
   - tip
+
+git:
+  depth: 3
+
+install:
+  - go get -v github.com/kardianos/govendor
+  - govendor sync
+
+script:
+  - go test -v -covermode=count -coverprofile=coverage.out
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
+
+notifications:
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/7f95bf605c4d356372f4
+    on_success: change  # options: [always|never|change] default: always
+    on_failure: always  # options: [always|never|change] default: always
+    on_start: false     # default: false