My line limit is always 120

Even though it is silly in general, I kinda stick to it
Fixed deprecation in Guardfile
This RegExp rule is way to simple
Guard runs documentation on localhost:8808
Reek: I don't know why it thinks that parameter is unused

Mysterious. I'll just exclude it
API Documentation for Model
API Documentation for Collection
API documentation for Configuration
API Documentation for DocumentModelMapper
API documentation for Query
Declared the Railtie to be part of the private API

This is not interesting for a user of Guacamole. It just does
stuff to introduce Guacamole to Rails.
Documentation for tiny things
Delete alternatively takes a model
Introduction sentence
Travis Badge
Introduce the concept of collections and models
Readme: Added part about configuration
Added missing badges
Update JSON example in Readme to use valid JSON

Since it's only a display of what would be stored in ArangoDB it isn't really a problem, but it messes up the highlighting and looks ugly :smile:
Rename Collection::save to create. Implement new save method which calls create or replace depending on the model's persistence state