Update escape option to be more consistent in naming

Author: michalmuskala

lib/encode.ex

@@ -49,9 +49,12 @@ defmodule Jason.Encode do
   defp escape_function(%{escape: escape}) do
     case escape do
       :json -> &escape_json/4
-      :unicode -> &escape_unicode/4
       :html_safe -> &escape_html/4
+      :unicode_safe -> &escape_unicode/4
+      :javascript_safe -> &escape_javascript/4
+      # Keep for compatibility with Poison
       :javascript -> &escape_javascript/4
+      :unicode -> &escape_unicode/4
     end
   end
 

lib/jason.ex

@@ -3,7 +3,7 @@ defmodule Jason do
   A blazing fast JSON parser and generator in pure Elixir.
   """
 
-  @type escape :: :json | :unicode | :html | :javascript
+  @type escape :: :json | :unicode_safe | :html_safe | :javascript_safe
   @type maps :: :naive | :strict
 
   @type encode_opt :: {:escape, escape} | {:maps, maps}