Adds coveralls support

Author: sopankhosla

.coveragerc

@@ -0,0 +1,4 @@
+[report]
+omit =
+    */python?.?/*
+    */site-packages/nose/*

.travis.yml

@@ -1,7 +1,13 @@
 language: python
 python:
   - "2.7"
-install: "pip install -r requirements.txt"
+install: 
+  - pip install -r requirements.txt
+  - pip install python-coveralls
+  - pip install coverage
+  - pip install nose
 script:
-- python setup.py install
-- python test.py
+  - python setup.py install
+  - nosetests --with-coverage
+after_success:  
+  - coveralls

README.md

@@ -1,6 +1,7 @@
 ## Python Loklak API
 [![PyPI version](https://badge.fury.io/py/python-loklak-api.svg)](https://badge.fury.io/py/python-loklak-api)
 [![Build Status](https://travis-ci.org/loklak/python-loklak-api.svg?branch=master)](https://travis-ci.org/loklak/python-loklak-api)
+[![Coverage Status](https://coveralls.io/repos/github/loklak/loklak_python_api/badge.svg?branch=master)](https://coveralls.io/github/loklak/loklak_python_api?branch=master)
 [![Code Health](https://landscape.io/github/loklak/python-loklak-api/master/landscape.svg?style=flat)](https://landscape.io/github/loklak/python-loklak-api/master)
 --------------------------------------------