converting to the travis-ci module and username/password

Removes the need to track down the travis token, which is kind of hard to acquire. The travis-ci module does the login via github using username/password (which are prompted for), and provides functions that replace the manual https requests. Here's what the result looks like in use:

![screen shot 2013-08-02 at 4 27 30 pm](https://f.cloud.github.com/assets/295678/904597/7f254eb0-fbcc-11e2-8334-6069e29645f1.png)