Logging some errors.

Close #1
Adding travis-ci
Merge pull request #2 from aleborba/travis

Adding CI with travis
Adicionando imagem de build no README
Merge pull request #3 from aleborba/travis_image

Adicionando imagem de build no README
Merge branch 'master' into handle_errors
Merge pull request #4 from aleborba/handle_errors

Logging some errors.