Graphcomposer

Since https://github.com/clue/graph-composer/pull/12 has been merged, we might now integrate it to our tool chain.
I'm not quite sure where an image like this might be useful...., but maybe there is more than one nerd (like @elkuku) that get's excited examining this huge thingy :wink: 

![dependencies](https://cloud.githubusercontent.com/assets/33978/2701967/3e70d6a6-c42a-11e3-8ff4-4f9b8ad57369.jpg)

It would be nice to "clear" this graph a bit, maybe excluding the dev dependencies and "reorder" the elements, but that's for another PR ;)

### Requirements

*  [GraphViZ](http://www.graphviz.org)
    * See also: [clue/graph-composer#install](https://github.com/clue/graph-composer#install)

### Usage

* `./bin/jtracker make composergraph`
    * Generate the graph with the default format (SVG) and open it using the default system application.
* `./bin/jtracker make composergraph --format=[format]`
    * Generate the graph with the given format (e.g. svg, svgz, png, jpeg, ...) and open it using the default system application.
* `./bin/jtracker make composergraph --file=[path/to/file]`
    * Generate the graph and save it to the given file taking the format from the file extension.
* `./bin/jtracker make composergraph --file=[path/to/file] --format=[format]`
    * Generate the graph and save it to the given file with the given format (e.g. svg, svgz, png, jpeg, ...).