chore(ci): added code cov report

.travis.yml

@@ -1,16 +1,22 @@
 language: node_js
 node_js:
- - "6"
+  - "6"
 
 script:
-- npm test
-- npm run deploy
+  - npm run flow.install:typings
+  - npm test
+
+after_success:
+  - ./node_modules/.bin/codecov
+  - npm run deploy
 
 addons:
- firefox: "42.0"
- apt:
-   sources:
-   - ubuntu-toolchain-r-test
-   # required by node-gyp to build some packages
-   packages:
-   - g++-4.8
+  # sauce labs tunel connector (read more https://docs.travis-ci.com/user/sauce-connect/ )
+  sauce_connect: true
+  firefox: "42.0"
+  apt:
+    sources:
+    - ubuntu-toolchain-r-test
+    # required by node-gyp to build some packages
+    packages:
+    - g++-4.8