title: Test travis-ci script without commit on github
body: <p>Always that I need to test some change on .travis file I need to push my commit to github, and if it fail, it is a problem, I would like to know, if there are any way to test my .travis file before commit it, preferably on travis-ci vm, it means I want to make the process that travis does when I push some commti to github, but without need to commit or push my changes.</p>