add coveralls.io; improve README
Update .travis.yml

remove log adding -q to maven
Update .travis.yml
refactor cobertura plugin
Merge branch 'master' of https://github.com/jesuspg/fiware-paas

# By jesus perez
# Via jesus perez
* 'master' of https://github.com/jesuspg/fiware-paas:
  Update .travis.yml
  Update .travis.yml
Merge pull request #21 from jesuspg/master

Add coveralls.io to master