update blip to interact with reorganized tideline

Fine tuning the interface between blip and tideline:
- no longer need to generate a new chart when jumping to most recent data
- update to more intuitive names for factory methods

@nicolashery At some point we should discuss other things that are now possible in tideline - namely, tideline will now allow you to keep the same chart around (as long as you're not loading new data) when going back and forth between one day and two week. This saves some computation in one day view, but it doesn't appear to be compatible with the current setup of the React components.

Feel free to move the chart = chartDailyFactory(...) if where I put it doesn't make the best sense.