Add coverage.py and coveralls.io trigger

.coveragerc

@@ -0,0 +1,5 @@
+[report]
+omit =  
+    */python?.?/*
+    */site-packages/nose/*
+    *__init__*

.travis.yml

@@ -1,9 +1,12 @@
 language: python
 python:
   - "2.7"
-# command to install dependencies
-install: "pip install -r requirements.txt"
-# command to run tests
-script: "nosetests -s"
+install:
+  - pip install -r requirements.txt
+  - pip install coveralls
+script:
+  - nosetests -s --with-coverage
 services:
-  - redis-server
+  - redis-server
+after_success:
+  - coveralls

README.md

@@ -1,6 +1,9 @@
 # acrewstic
 Music and media repository for your NAS, written in Python
+
 [![Build Status](https://travis-ci.org/carlomorelli/acrewstic.svg?branch=master)](https://travis-ci.org/carlomorelli/acrewstic)
+[![Coverage Status](https://coveralls.io/repos/github/carlomorelli/acrewstic/badge.svg?branch=master)](https://coveralls.io/github/carlomorelli/acrewstic?branch=master)
+
 
 ## About
 _acrewstic_ is implemented as a RESTful API using Python 2.7 with Flask library (http://flask.pocoo.org/).