Add coverage report. (#5)

* Add istanbul javascript code coverage

* Send coverage to codacy

* Add codacy coverage badge

* Add travis build badge

Author: Simon Nagl

.gitignore

@@ -2,6 +2,7 @@ node_modules
 dist
 spec
 package
+coverage
 
 # macOS
-.DS_Store
+.DS_Store

.travis.yml

@@ -9,3 +9,8 @@ deploy:
   on:
     tags: true
     repo: e-mundo/jsog-typescript
+
+after_success:
+  # Send coverage to codacy
+  - cat ./coverage/lcov.info | ./node_modules/.bin/codacy-coverage
+

README.md

@@ -1,6 +1,8 @@
 # JavaScript Object Graphs with Typescript
 
+[![Build Status](https://travis-ci.org/emundo/jsog-typescript.svg?branch=master)](https://travis-ci.org/emundo/jsog-typescript)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/f1aa8312b430447083609f8ca5519136)](https://www.codacy.com/app/simonnagl/jsog-typescript?utm_source=github.com&utm_medium=referral&utm_content=emundo/jsog-typescript&utm_campaign=badger)
+[![Codacy Badge](https://api.codacy.com/project/badge/Coverage/f1aa8312b430447083609f8ca5519136)](https://www.codacy.com/app/simonnagl/jsog-typescript?utm_source=github.com&utm_medium=referral&utm_content=emundo/jsog-typescript&utm_campaign=Badge_Coverage)
 
 This Typescript module implements [JSOG format](https://github.com/jsog/jsog).
 It is able to instantiante typescript objects during deserialization.