Change interpolation syntax to %{key}

test/fixtures/en_locale.yml

@@ -1,9 +1,9 @@
 ---
   simple: "less is more"
-  whatever: "something :something"
+  whatever: "something %{something}"
   errors:
     i18n:
-      undefined_interpolation: "undefined key :key"
-      unknown_translation: "translation ':name' wasn't found"
+      undefined_interpolation: "undefined key %{key}"
+      unknown_translation: "translation '%{name}' wasn't found"
     syntax:
       oops: "something wasn't right"

test/liquid/i18n_test.rb

@@ -34,12 +34,4 @@ class I18nTest < Test::Unit::TestCase
   def test_sets_default_path_to_en
     assert_equal I18n::DEFAULT_LOCALE, I18n.new.path
   end
-
-  def test_escaping_of_symbols
-    assert_equal "do replaced! not :gsub", @i18n.send(:interpolate, 
-                            'do :replace not \\:gsub',
-                            {
-                              :replace => "replaced!"
-                            })
-  end
 end