FEATURE: upport for renderer: 'multi' in graphs and targets

- must use renderer: multi in graph
- must define particular renderer: within a target
- target's alias must match similarly as for color:

- giraffe.coffee to reflect JS code changes and re-generate the giraffe.js
- newest Rickshaw and d3 is used
updates to #58

* updated dashboards.js documentation
* updated coffee file to make sure the demo can display the multi render graph
* compiled coffeescript with latest version
updated to v1.1.0