Supported TravisCI (added .travis.yml)

**Supported Travis CI**

Test result is [this](https://travis-ci.org/futoase/gondler/builds/11989848).

![2013-10-01 10 15 30](https://f.cloud.github.com/assets/72997/1242228/032e441c-2a37-11e3-87df-92e87925f1b8.png)