Merge pull request #1729 from jheinen/master

gr: use new DPI setting for SVG output

src/backends/gr.jl

@@ -544,6 +544,9 @@ function gr_display(plt::Plot, fmt="")
 
     _gr_thickness_scaling[1] = plt[:thickness_scaling]
     dpi_factor = plt[:dpi] / Plots.DPI
+    if fmt == "svg" then
+        dpi_factor *= 4
+    end
 
     # collect some monitor/display sizes in meters and pixels
     display_width_meters, display_height_meters, display_width_px, display_height_px = GR.inqdspsize()