rstudio/leaflet — pull request #12 by jcheng5 (2014-12-10 02:01:20+00:00)
Title: Nicer handling of spatial args

* Most layer functions take `lng, lat` instead of `lat, lng` now
* Lots of ways to assign lng/lat values now: `NULL` to infer from data, formula evaluated against data, or direct. (You can now do `leaflet(data) %>% addCircles()`)
* Don't serialize entire data object to client