ENH: resample(..., how='range', start=a, stop=b)
Carrying over from [SO comments](http://stackoverflow.com/questions/16697869/getting-specific-median-from-data/16698053?noredirect=1#comment24034122_16698053)

Is it worth adding kwargs `start` and `stop` to enable this succinct usage?

```
df.resample('D', how='range', start=0, stop=3)
```
