update news

Author: cpsievert

NEWS.md

@@ -1,3 +1,16 @@
+# 4.5.0 -- 21 September 2016
+
+## NEW FEATURES
+
+* Added the `plot_mapbox()` and `plot_geo()` functions, which make it easier to work with the "scattermapbox", "scattergeo", and "choropleth" trace types. See the maps chapter of the plotly book for examples -- <https://cpsievert.github.io/plotly_book/maps.html> 
+* Added the `add_mesh3d()` and `add_pie()` functions as wrappers around the "mesh3d", and "pie" trace types.
+
+## CHANGES
+
+* The `add_scattergeo()` and `add_choropleth()` functions have been deprecated in favor of `plot_geo()`. 
+* The `add_area(...)` function changed it's meaning from `add_lines(..., fill = 'tozeroy')` to a wrapper around the area trace <https://plot.ly/r/reference/#area>. This is more consistent with the naming conventions already in place for other `add_()` functions.
+* `add_ribbons()` now shows points (instead of fill) on hover.
+
 # 4.4.5 -- 19 September 2016
 
 ## NEW FEATURES