Activate GitHub Webhook for Travis CI

[tagliala]

So PR should be automatically tested on Travis

Quoting from: http://docs.travis-ci.com/user/getting-started/

Step two: Activate GitHub Webhook #

Once you're signed in, and we've initially synchronized your repositories from GitHub, go to your profile page for open source or for your private projects.

You'll see all the organizations you're a member of and all the repositories you have access to. The ones you have administrative access to are the ones you can enable the service hook for.

Flip switch to on for all repositories you'd like to enable.

[leogalmeida]

Webhook enabled