Dashboard v1.0.0

![localhost_3002](https://cloud.githubusercontent.com/assets/498274/5426467/a3be6de0-8363-11e4-8b96-f9e868c1d4b5.png)

On minimum time interval, this method returns the desired time interval, but the display layer could review the value and skip rendering some ticks if they overlap. Unfortunately, I did not come up with a reliable solution for overlapping with Rickshaw's tick system, so I just hard-coded a minimum pixel space between ticks based on the chart pixel width below (I assume the tick text occupies less than the hardcoded amount of space).