Making sure Travis CI deployment uploads the tarball

Removes on.repo from .travis.yml

Allows deploying to GitHub releases from
repositories other then benjamin-alber/dillinger

Making sure Travis CI deployment works with tags

3.3.4

Makes Travis-CI deploy pre-built .zip to GitHub

Testing travis binary deploy

Makes Travis-CI reply pre-built releases to GitHub

First pre-built version

Provides a pre-built version of Dillinger.