[Chart] data-accessor, lens, and Chart

[Tim Docker]

On 21/06/13 10:39, Ben Gamari wrote:

> Sure, this seems reasonable. Let's continue this discussion when the 
> abstraction work is beginning to converge.

This has happened. Jan's code has been merged onto the master branch. It 
looks like most of the changes to the chart core are complete - work is 
ongoing in font support under diagrams.

Are you still interested in producing a pull request for the usage of 
lens? I feel like this might be a good time, given that there a few 
pending changes to the API in any case - we might as have all the API 
changes in a single release.

I'd be aiming to make a release in the next few weeks.

Tim