add more news; remove redundant docs

Author: cpsievert

NEWS

@@ -4,6 +4,8 @@ CHANGES:
 
 Upgrade to plotlyjs v1.10.0 -- https://github.com/plotly/plotly.js/releases/tag/v1.9.0
 
+Distinguish between "built" (plotly_built) and "non-built" (plotly_hash) plotly objects. See #562
+
 
 3.5.0 -- 19 Apr 2016
 

R/print.R

@@ -3,8 +3,6 @@
 #' @param x a plotly object
 #' @param ... additional arguments
 #' @export
-#' @importFrom htmlwidgets createWidget
-#' @importFrom htmlwidgets sizingPolicy
 print.plotly_hash <- function(x, ...) {
   x <- as.widget(x)
   print(x, ...)