title: How do you force a deploy to Heroku without doing a git commit
body: <p>I had a case where a push to heroku failed because of a database issue. I fixed it, but the only way I know to deploy is via "git push heroku master". Since I didn't commit anything, it won't push a new deployment. The only way I can get it to deploy to make some minor change and then do it. Is there  a way to force a deploy? I'm using play 2.1.2. </p>