Added support for localizing input placeholders. [Closes #4]

Author: coderifous

build/jquery.localize.js

@@ -65,7 +65,10 @@ $.localize = (pkg, options = {}) ->
       key = elem.attr("rel").match(/localize\[(.*?)\]/)[1]
       value = valueForKey(key, data)
       if elem.is('input')
-        elem.val(value)
+        if elem.is("[placeholder]")
+          elem.attr("placeholder", value)
+        else
+          elem.val(value)
       else if elem.is('optgroup')
         elem.attr("label", value)
       else if elem.is('img')

src/jquery.localize.coffee

@@ -29,6 +29,11 @@ test "input tag value substitution", ->
   t.localize("test", @testOpts)
   equals t.val(), "input success"
 
+test "input tag placeholder substitution", ->
+  t = localizableTag("input", "test.input", placeholder: "placeholder fail")
+  t.localize("test", @testOpts)
+  equals t.attr("placeholder"), "input success"
+
 test "image tag src and alt substitution", ->
   t = localizableTag("img", "test.ruby_image", src: "ruby_square.gif", alt: "a square ruby")
   t.localize("test", @testOpts)