Implement the chart widget, and include the flot library. Data is communicated from Django to the javascript code using html5 data attributes, emembed using a Django custom filter.

Implement a dashboard infrastructure to allow us to register widget types, create dashboards, create instances of widget types with specific configuration and associate those with a given dashboard, at a given position. The dashboard infrastructure is moved out of hid and into it's own application as it is stand alone (the widgets may depend on hid specific logic, but the infrastructure doesn't).