Add tests to the ? in page name fix (#1641)

test/test_page_view.rb

@@ -138,4 +138,9 @@ EOS
     @view.instance_variable_set :@content, page.formatted_data
     assert_equal @view.breadcrumb, ''
   end
+
+  test "links to pages containing ?" do
+    @view = Precious::Views::Page.new
+    assert_equal @view.page_route("Page?"), '/Page%3F'
+  end
 end