Making life easier to develop using vagrant box

Me and @nuxlli uses mac to develop, so, we are using this vagrant to help us have an environment.

Three contributions related to "development cycle".

* Fake S3 - Makes optional the use of fake S3. https://github.com/azukiapp/vagrant-openruko/commit/66f0e45eb30e72d7872f6153c244504d2b59fed3
* Configurable repositories and hostname.

Extra:
* With hostname configurable, allow us to fix bug on commands: `log` and `run`, setting env variables. https://github.com/azukiapp/vagrant-openruko/commit/1aa1bb6839500df737550b86621b2432dc6f2bbb