Update .travis.yml

Added for Codecov

.travis.yml

@@ -1,8 +1,30 @@
 ---
 language: go
 
+sudo: required
+
 notifications:
   email: false
 
+before_install:
+  - sudo apt-get -qq update
+  - sudo apt-get install -y rpm
+  
 script:
-  - go test ./...
+  - GO111MODULE=on go test ./...
+  - go test -race -coverprofile=coverage.txt -covermode=atomic ./...
+  
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
+  
+deploy:
+  - provider: script
+    skip_cleanup: true
+    script: curl -sL https://git.io/goreleaser | bash
+    on:
+      tags: true
+      condition: "$TRAVIS_OS_NAME = linux"
+
+env:
+  matrix:
+    - GO111MODULE=on