Use svglite for outputting svg

Author: hadley

DESCRIPTION

@@ -36,7 +36,8 @@ Suggests:
     nlme,
     testthat,
     quantreg,
-    knitr
+    knitr,
+    svglite
 Enhances: sp
 License: GPL-2
 URL: http://ggplot2.org, https://github.com/hadley/ggplot2

NEWS.md

@@ -1,5 +1,7 @@
 # ggplot2 2.0.0.9000
 
+* `ggsave("x.svg")` now uses svglite to produce the svg (#1432).
+
 * `stat_bin()` has been overhauled to use the same algorithm as ggvis, which 
   has been considerably improved thanks to the advice of Randy Prium (@rpruim).
   This includes:

R/save.r

@@ -104,7 +104,7 @@ plot_dev <- function(device, filename, dpi = 300) {
     ps =   eps,
     tex =  function(...) grDevices::pictex(...),
     pdf =  function(..., version = "1.4") grDevices::pdf(..., version = version),
-    svg =  function(...) grDevices::svg(...),
+    svg =  function(...) svglite::svglite(...),
     emf =  function(...) grDevices::win.metafile(...),
     wmf =  function(...) grDevices::win.metafile(...),
     png =  function(...) grDevices::png(..., res = dpi, units = "in"),